[projmgr] Add pack related access sequences handling

[grasci-arm]

Handle $Dpack$, $Bpack$ and $Pack(vendor::name)$ access sequences as documented in:
https://github.com/Open-CMSIS-Pack/cmsis-toolbox/blob/main/docs/YML-Input-Format.md#access-sequences

Note: use :: as delimiter instead of ., as established by pack name conventions.

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 10 lines in your changes missing coverage. Please review.

Project coverage is 63.86%. Comparing base (6cdfdd7) to head (7c3a5f7).

Files	Patch %	Lines
tools/projmgr/src/ProjMgrWorker.cpp	75.75%	1 Missing and 7 partials ⚠️
tools/projmgr/test/src/ProjMgrUnitTests.cpp	87.50%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1679      +/-   ##
==========================================
+ Coverage   63.81%   63.86%   +0.04%     
==========================================
  Files         162      162              
  Lines       31599    31636      +37     
  Branches    19364    19392      +28     
==========================================
+ Hits        20166    20203      +37     
+ Misses       7530     7527       -3     
- Partials     3903     3906       +3     

Flag	Coverage Δ
buildmgr-cov	74.21% <ø> (ø)
packchk-cov	65.54% <ø> (ø)
projmgr-cov	80.72% <80.00%> (+0.06%)	⬆️

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

Files	Coverage Δ
tools/projmgr/test/src/ProjMgrWorkerUnitTests.cpp	65.88% <100.00%> (+0.02%)	⬆️
tools/projmgr/test/src/ProjMgrUnitTests.cpp	79.46% <87.50%> (+0.03%)	⬆️
tools/projmgr/src/ProjMgrWorker.cpp	87.13% <75.75%> (+0.15%)	⬆️

... and 7 files with indirect coverage changes

[github-actions]

Test Results

  7 files   53 suites   4m 50s ⏱️
185 tests 168 ✅ 17 💤 0 ❌
692 runs  624 ✅ 68 💤 0 ❌

Results for commit 7c3a5f7.

♻️ This comment has been updated with latest results.

[brondani]

@ReinhardKeil Please update the documentation accordingly.