CMDistributionGroup add collection members

[nyanhp]

Pull Request (PR) description

Resource CMDistributionGroup can now also match, include and exclude Collections.

Tested in lab environment using the updated example for this resource.

This Pull Request (PR) fixes the following issues

None

Task list

• [x] 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).
• [x] Resource documentation added/updated in README.md.
• [x] Resource parameter descriptions added/updated in README.md, schema.mof and comment-based help.
• [x] Comment-based help added/updated.
• [x] Localization strings added/updated in all localization files as appropriate.
• [x] Examples appropriately added/updated.
• [x] Unit tests added/updated. See DSC Community Testing Guidelines.
• [ ] Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• [x] New/changed code adheres to DSC Community Style Guidelines.

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This change is 

[codecov[bot]]

Codecov Report

Merging #110 (4a858b2) into master (7432eca) will increase coverage by 0%. The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #110   +/-   ##
=====================================
  Coverage      98%    98%           
=====================================
  Files          62     62           
  Lines        9027   9077   +50     
=====================================
+ Hits         8928   8978   +50     
  Misses         99     99           

[nyanhp]

Sorry folks, I don't know how to properly pass the tests here without modifying the stubs. Please let me know what needs to be done. The existing code seems to be too complex for me to be able to "make it work" in a reasonable amount of time, unfortunately. If modifying the stubs is not desired, please close this PR and I will use my fork at my customer.

[nyanhp]

In addition to my inability to pass the unit tests, the HQRM tests are failing due to an updated version of ChangelogManagement: - BREAKING CHANGE: Get-ChangelogData''s Output.Unreleased is now null if there are no unreleased changes to match the behavior of Output.Released