DAOS-18626 test: Add per-sanitizer suite selection and JUnit reporting to run_utest.py

Extend utils/run_utest.py so the unit-test suite can be run selectively
under ASan, UBSan, or TSan, and so results are reported in a form CI can
consume:

- New --asan/--ubsan/--tsan flags select suites via new 'asan'/'tsan'
  Suite config keys (utest.yaml); suites unsuitable under a given
  sanitizer (e.g. memcheck-only suites, control Go tests) opt out.
- New --list flag prints the suites/tests that would run, honoring all
  selection/filter options, without running them.
- Per-test sanitizer log capture: new-since-setup() sanitizer log files
  (found via the ASAN_OPTIONS/UBSAN_OPTIONS/TSAN_OPTIONS log_path=
  directory) are copied into each test's own log dir, tagged with a
  companion '<logfile>.testname' file for attribution.
- cmocka XML results are now written into CMOCKA_XML_FILE's directory
  (the Docker-mounted test-results/ volume) instead of a source-relative
  test_results/ directory, and only newly-appeared XML files are
  relabeled per test/suite.
- In GHA context, one JUnit TestCase per test is now written per suite
  (write_xml_result()) so result counts are accurate.
- utils/utest.yaml: tag suites with 'tsan: True' (opt-in, TSan suites
  are a small subset) and 'asan: False'/'gha: False' (opt-out) as
  appropriate for each suite.

None of these flags or config keys are referenced by any workflow yet;
this is a standalone, backward-compatible change to the test runner.
Part of the DAOS-18626 ASan CI split (see
ckochhof/dev/master/daos-18626/patch-001 for the original, unsplit
commit).

Signed-off-by: Cedric Koch-Hofer <cedric.koch-hofer@hpe.com>

Author: kanard38

utils/cq/words.dict

@@ -2,6 +2,7 @@ ABT
 ACL
 AIO
 APs
+ASan
 Ansible
 BW
 Broadwell
@@ -63,9 +64,11 @@ SubProcess
 Subdirectories
 TestFail
 Testcase
+tsan
 UCX
 UNS
 Uncomment
+ubsan
 VMD
 XUnitResult
 acl
@@ -118,6 +121,7 @@ cmdlines
 cmdresult
 cmds
 cmocka
+cmocka's
 cmp
 coh
 committable
@@ -156,6 +160,7 @@ dfs
 dfuse
 dir
 dirname
+disambiguates
 distro
 dkey
 dkeys