ComputerManagementDsc: Class-based resources re-use module DscResource.Base

[johlju]

Pull Request (PR) description

• ComputerManagementDsc
  • The class-based resources are now re-using the module DscResource.Base - Fixes Issue Suggest making class-based resources re-use module DscResource.Base #404.

This Pull Request (PR) fixes the following issues

• Fixes Suggest making class-based resources re-use module DscResource.Base #404
• Closes ComputerManagementDsc: Add missing unit tests #406
• Closes Missing unit tests for private functions #403
• Closes ComputerManagementDsc: Uses commands from DscResource.Common #408
• Closes Re-use command Get-DscProperty and Test-DscProperty from DscResource.Base #407

Task list

• Added an entry to the change log under the Unreleased section of the
  file CHANGELOG.md. Entry should say what was changed and how that
  affects users (if applicable), and reference the issue being resolved
  (if applicable).
• Resource documentation added/updated in README.md.
• Resource parameter descriptions added/updated in README.md, schema.mof
  and comment-based help.
• Comment-based help added/updated.
• Localization strings added/updated in all localization files as appropriate.
• Examples appropriately added/updated.
• Unit tests added/updated. See DSC Community Testing Guidelines.
• Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• New/changed code adheres to DSC Community Style Guidelines.

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This change is 

[codecov]

Codecov Report

Merging #405 (9764d4d) into main (bf1ad27) will increase coverage by 1%.
The diff coverage is n/a.

@@         Coverage Diff          @@
##           main   #405    +/-   ##
====================================
+ Coverage    89%    90%    +1%     
====================================
  Files        18     18            
  Lines      1940   1802   -138     
====================================
- Hits       1730   1629   -101     
+ Misses      210    173    -37     

Impacted Files	Coverage Δ
source/ComputerManagementDsc.psm1	85% <0%> (+7%)	⬆️

[PlagueHO]

Reviewed 16 of 16 files at r1, 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @johlju)