[devtools] Omit leading Cvendor delimiter :: in API identifier

[spcaipers-arm]

Address #1821

[github-actions]

Test Results

  7 files   53 suites   4m 43s ⏱️
185 tests 168 ✅ 17 💤 0 ❌
692 runs  624 ✅ 68 💤 0 ❌

Results for commit 5cc203a.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.99%. Comparing base (d0c0775) to head (5cc203a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1879   +/-   ##
=======================================
  Coverage   64.99%   64.99%           
=======================================
  Files         163      163           
  Lines       34589    34589           
  Branches    20065    20065           
=======================================
  Hits        22482    22482           
+ Misses       7952     7924   -28     
- Partials     4155     4183   +28     

Flag	Coverage Δ
buildmgr-cov	73.94% <ø> (ø)
packchk-cov	65.65% <ø> (ø)
projmgr-cov	81.76% <ø> (ø)

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

Files with missing lines	Coverage Δ
tools/projmgr/test/src/ProjMgrUnitTests.cpp	80.97% <ø> (ø)

... and 12 files with indirect coverage changes