[cbuild-run] Implement extensions (system-resources, debug-vars, debuggers)

[spcaipers-arm]

Address #1953 and #1947

[github-actions]

Test Results

 33 files   66 suites   10s ⏱️
162 tests 162 ✅ 0 💤 0 ❌
486 runs  486 ✅ 0 💤 0 ❌

Results for commit e8d22f3.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

Attention: Patch coverage is 85.23490% with 22 lines in your changes missing coverage. Please review.

Project coverage is 65.60%. Comparing base (3256e32) to head (e8d22f3).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
tools/projmgr/src/ProjMgrRunDebug.cpp	85.71%	0 Missing and 11 partials ⚠️
tools/projmgr/src/ProjMgrYamlParser.cpp	66.66%	2 Missing and 4 partials ⚠️
tools/projmgr/src/ProjMgrCbuildRun.cpp	92.50%	0 Missing and 3 partials ⚠️
tools/projmgr/test/src/ProjMgrUnitTests.cpp	71.42%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1977      +/-   ##
==========================================
+ Coverage   65.52%   65.60%   +0.08%     
==========================================
  Files         173      173              
  Lines       35259    35398     +139     
  Branches    20469    20571     +102     
==========================================
+ Hits        23102    23222     +120     
- Misses       7914     7915       +1     
- Partials     4243     4261      +18     

Flag	Coverage Δ
projmgr-cov	81.86% <85.23%> (+0.04%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
tools/projmgr/include/ProjMgrParser.h	100.00% <ø> (ø)
tools/projmgr/include/ProjMgrRunDebug.h	100.00% <ø> (ø)
tools/projmgr/src/ProjMgrWorker.cpp	88.16% <100.00%> (+0.02%)	⬆️
tools/projmgr/test/src/ProjMgrUnitTests.cpp	80.75% <71.42%> (+<0.01%)	⬆️
tools/projmgr/src/ProjMgrCbuildRun.cpp	90.09% <92.50%> (+2.41%)	⬆️
tools/projmgr/src/ProjMgrYamlParser.cpp	81.88% <66.66%> (-0.23%)	⬇️
tools/projmgr/src/ProjMgrRunDebug.cpp	82.72% <85.71%> (+0.90%)	⬆️

... and 1 file with indirect coverage changes