add tinydir (#285)

it is used in FileUtils

Author: minggo

tinydir/COPYING

@@ -0,0 +1,26 @@
+Copyright (c) 2013-2016, tinydir authors:
+- Cong Xu
+- Lautis Sun
+- Baudouin Feildel
+- Andargor <[email protected]>
+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. 
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.

tinydir/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "tinydir",
+  "description": "Lightweight, portable and easy to integrate C directory and file reader",
+  "license": "BSD-2-Clause",
+  "keywords": [
+    "dir",
+    "directory",
+    "file",
+    "reader",
+    "filesystem"
+  ],
+  "src": [
+    "tinydir.h"
+  ],
+  "version": "1.2.1",
+  "repo": "cxong/tinydir"
+}