Deprecating xFailOverCluster before rename

[johlju]

Pull Request (PR) description

• Deprecating xFailOverCluster before rename

  This Pull Request (PR) fixes the following issues

In preparation for issue #69.

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).
• [ ] 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 

[johlju]

@nickgw do you have time to review this (proof read). 🙂

[codecov[bot]]

Codecov Report

Merging #265 (0777c28) into main (a2dd8ef) will not change coverage. The diff coverage is n/a.

@@         Coverage Diff         @@
##           main   #265   +/-   ##
===================================
  Coverage   100%   100%           
===================================
  Files         7      7           
  Lines       458    458           
===================================
  Hits        458    458           

[gaelcolas]

Although, do we want to adda Warning message upon loading the module? (by way of Prefix @johlju)