[devtools] Handle automatic rebase of config files (#1444)

[grasci-arm]

Address #2194

• Remove ProjMgrUtils::NormalizeLineEndings and related test cases, use RteUtils::EnsureLf instead
• Add RteFsUtils::CmpFiles and related test cases
• Add config rebase mechanism in RteProject::UpdateConfigFileBackups and update related test case RteModelPrjTest.LoadCprjConfigVer
• Add projmgr test case ProjMgrUnitTests.ConfigFilesUpdateRebase

[github-actions]

Test Results

  7 files   53 suites   4m 53s ⏱️
185 tests 168 ✅ 17 💤 0 ❌
692 runs  624 ✅ 68 💤 0 ❌

Results for commit 6402853.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.66%. Comparing base (c779cb3) to head (6402853).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2398      +/-   ##
==========================================
- Coverage   64.67%   64.66%   -0.02%     
==========================================
  Files         145      145              
  Lines       26097    26088       -9     
  Branches    15747    15743       -4     
==========================================
- Hits        16878    16869       -9     
+ Misses       7068     7047      -21     
- Partials     2151     2172      +21     

Flag	Coverage Δ
buildmgr-cov	79.87% <ø> (ø)
packchk-cov	69.73% <ø> (ø)
packgen-cov	82.02% <ø> (ø)
projmgr-cov	87.70% <100.00%> (-0.02%)	⬇️

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

Files with missing lines	Coverage Δ
tools/projmgr/include/ProjMgrUtils.h	87.50% <ø> (ø)
tools/projmgr/src/ProjMgrUtils.cpp	93.79% <ø> (-0.19%)	⬇️
tools/projmgr/src/ProjMgrYamlEmitter.cpp	94.59% <100.00%> (ø)

... and 7 files with indirect coverage changes

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