remove auroconf, fix buffer use, score I/0, move src

The use of GNU autoconf has been removed to simplify porting use
and remove the unnecessary complications that comes with autoconf.
Now we have a simple `Makefile` and `config.h` file.  To configure,
edit `Makefile` and/or `config.h` as needed.

Removed GNU autoconf specific files.  However we keep the
pre-formatted documentation filenames that end in "*.in".

The old "easy" and GNU autoconf specific make rules are now
"do nothing" stub rules.

By default, the code is compiled using the `gnu17` C standard.

The `Makefile`, by default, does NOT change the ownership and group
of installed code and related files.

The `make dist` and `make dist.src` to form so-called distribution
files have been removed.  The GitHub repo is now the distribution:
simply clone it as needed from `https://github.com/lcn2/rogue5.4`.

Added `make depend` rule to build dependency rules.
Updated `Makefile` with the current dependency rules.

The rogue lock file is now located in the home directory.
The basename of the lock file is defined in `Makefile`
as the `${LOCKFILE_BASENAME}` make variable.

By default, the rogue lock file is now `~/.rogue.lck`.

The rogue save file is now located in the home directory.
The basename of the save file is defined in `Makefile`
as the `${SAVEFILE_BASENAME}` make variable.

By default, the rogue save file is now `~/.rogue.save`.

The rogue score file is now located in the home directory.
The basename of the save file is defined in `Makefile`
as the `${SCOREFILE_BASENAME}` make variable.

By default, the rogue score file is now `~/.rogue.scr`.

The rogue lock file path, rogue save file path,
and rogue score file path is now formed early in `main()`
as global buffers.

Updated rogue documentation to reference the lock file,
safe file, and score files.

Fixed how the rogue documentation is formed via `Makefile`.

Moved source out of the `src/` sub-directory into the top level.

Updated `LICENSE` to be the combination of the top level `LICENSE`
and the former `src/LICENSE.TXT`.

Improved the commented out lines for the Address Sanitizer (ASAN).
Improved how Address Sanitizer (ASAN) is used when enabled.

Fixed a number of code bugs related to use uninitialized variables,
and static buffers.

Fixed issue #4: replacing use of `sprintf(3)` with `snprintf(3)`.

Fixed how the rogue score file is read and written.

By default, the top scores are recorded in the rogue score file,
regardless of if the game "won" or not.

Removed dead code in `main.c` that we previously had moved to `common.c`.

Fixed use of booleans to use definitions under `<stdbool.h>`.

Updated `.gitignore` as per all of the above.

Updated rogue documentation and `README.md` as per all of the above.

Author: lcn2

.gitignore

@@ -1,26 +1,22 @@
 # sort via: sort -d
+#
+findpw
+Makefile.bak
+Makefile.easy
 NOTES
+*.o
+rogue
+rogue.6
+rogue.cat
+rogue.doc
+rogue.html
 .rogue.lck
 rogue.lck
+rogue.md
+rogue.me
 .rogue.scr
 rogue.scr
-src/autom4te.cache/
-src/config.h
-src/config.log
-src/config.status
-src/findpw
-src/Makefile
-src/*.o
-src/rogue
-src/rogue.6
-src/rogue.cat
-src/rogue.doc
-src/rogue.html
-src/.rogue.lck
-src/rogue.lck
-src/rogue.md
-src/rogue.me
-src/.rogue.scr
-src/rogue.scr
-src/scedit
-src/tags
+rogue.scr
+scedit
+skel/
+tags

LICENSE

@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2025, Michael Toy, Ken Arnold and Glenn Wichman
+Copyright (c) 2025-2026, Michael Toy, Ken Arnold and Glenn Wichman
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
@@ -26,3 +26,99 @@ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+===========================================================================
+
+Rogue: Exploring the Dungeons of Doom
+Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name(s) of the author(s) nor the names of other contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+===========================================================================
+
+Portions of this software (state.c, mdport.c) are based on the work
+of Nicholas J. Kisseberth. Used under license:
+
+Copyright (C) 1999, 2000, 2005 Nicholas J. Kisseberth
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name(s) of the author(s) nor the names of other contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+===========================================================================
+
+Portions of this software (xcrypt.c) are based on the work
+of David Burren. Used under license:
+
+FreeSec: libcrypt
+
+Copyright (C) 1994 David Burren
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name(s) of the author(s) nor the names of other contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.