Hashtable formatting check: Ignore empty hashtables with white space inside

[SSvilen]

Pull Request (PR) description

This PR contains hotfix for the hashtable analyzer rule. All hashtables with white space inside will be ignored.

This Pull Request (PR) fixes the following issues

None.

Task list

• [x] Added an entry under the Unreleased section of the change log in the CHANGELOG.md. Entry should say what was changed, and how that affects users (if applicable).
• [ ] Documentation added/updated in README.md.
• [ ] Comment-based help added/updated for all new/changed functions.
• [ ] Localization strings added/updated in all localization files as appropriate.
• [x] Unit tests added/updated.
• [x] New/changed code adheres to DSC Resource Style Guidelines and Best Practices.

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This change is 

[codecov-io]

Codecov Report

Merging #353 into dev will not change coverage. The diff coverage is 100%.

@@         Coverage Diff         @@
##            dev   #353   +/-   ##
===================================
  Coverage    80%    80%           
===================================
  Files        12     12           
  Lines      1805   1805           
  Branches      2      2           
===================================
  Hits       1447   1447           
  Misses      356    356           
  Partials      2      2

[johlju]

@SSvilen Thank you for fixing this so quick! 😃

[PlagueHO]

Great job @SSvilen - thanks for doing this - and so quick!