Add Improvements from PSSA 1.18

[PlagueHO]

PSSA 1.18 includes many improvements that might help DSC Resource kit.

The PSUseConsistentWhitespace could be used here and in the template to reduce PR comments.

The PSUseConsistentIndentation could also prove useful.

And finally the changes to DSC handling call also serve to simplify.

This is mainly just a place holder issue.

https://devblogs.microsoft.com/powershell/powershell-scriptanalyzer-version-1-18-0-released/

[SSvilen]

@johlju @PlagueHO

Once the new version of PSSA is out and the problem with ConsistentWhiteSpace is no longer present, I could turn these on and additionally revert the empty hashtable formatting check. (PR #353 )