Unify functions to strip prefix and suffix (#1266)

[grasci-arm]

ExtractPrefix, ExtractSuffix, StripPrefix, StripSuffix methods
Same is in TypeScript

Replace RemoveSuffixByString with ExtractPrefix
Replace RemovePrefixByString with StripPrefix

[github-actions]

Test Results

    3 files     21 suites   12m 30s ⏱️
  406 tests   406 ✅ 0 💤 0 ❌
1 218 runs  1 218 ✅ 0 💤 0 ❌

Results for commit 9e2ff2e.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

Attention: Patch coverage is 85.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 66.55%. Comparing base (097316d) to head (9e2ff2e).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
tools/projmgr/test/src/ProjMgrRpcTests.cpp	25.00%	0 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2146      +/-   ##
==========================================
- Coverage   66.55%   66.55%   -0.01%     
==========================================
  Files         181      181              
  Lines       37567    37566       -1     
  Branches    21888    21891       +3     
==========================================
- Hits        25004    25001       -3     
  Misses       8033     8033              
- Partials     4530     4532       +2     

Flag	Coverage Δ
buildmgr-cov	73.95% <ø> (ø)
packchk-cov	70.18% <ø> (ø)
projmgr-cov	81.44% <85.00%> (-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/src/ProjMgrUtils.cpp	93.26% <100.00%> (ø)
tools/projmgr/src/ProjMgrWorker.cpp	88.28% <100.00%> (ø)
tools/projmgr/src/ProjMgrYamlParser.cpp	83.40% <100.00%> (ø)
tools/projmgr/test/src/ProjMgrUnitTests.cpp	80.49% <100.00%> (ø)
tools/projmgr/test/src/ProjMgrRpcTests.cpp	65.36% <25.00%> (-0.91%)	⬇️

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