[projmgr] Add link-time-optimize handling

[grasci-arm]

Address #1886

[github-actions]

Test Results

    3 files     18 suites   12m 1s ⏱️
  389 tests   389 ✅ 0 💤 0 ❌
1 167 runs  1 167 ✅ 0 💤 0 ❌

Results for commit 62efff7.

[codecov]

Codecov Report

Attention: Patch coverage is 81.81818% with 4 lines in your changes missing coverage. Please review.

Project coverage is 66.37%. Comparing base (aaa99e5) to head (62efff7).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
tools/projmgr/test/src/ProjMgrUnitTests.cpp	60.00%	0 Missing and 4 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2074   +/-   ##
=======================================
  Coverage   66.36%   66.37%           
=======================================
  Files         173      173           
  Lines       36440    36462   +22     
  Branches    21210    21224   +14     
=======================================
+ Hits        24185    24202   +17     
  Misses       7877     7877           
- Partials     4378     4383    +5     

Flag	Coverage Δ
buildmgr-cov	73.95% <ø> (ø)
projmgr-cov	82.00% <81.81%> (-0.01%)	⬇️

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/src/ProjMgrCbuild.cpp	93.63% <100.00%> (+0.03%)	⬆️
tools/projmgr/src/ProjMgrWorker.cpp	88.04% <100.00%> (+<0.01%)	⬆️
tools/projmgr/src/ProjMgrYamlParser.cpp	83.08% <100.00%> (+0.01%)	⬆️
tools/projmgr/test/src/ProjMgrUnitTests.cpp	80.36% <60.00%> (-0.05%)	⬇️

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