* [Feature]
Fixed error message using a null resourcemanager
With most recent CoreFx supporting STA, removed special CoreClr code paths
Added test coverage
Removed some dead commented out code that was never used
* [Feature]
merged tests to one file, use runas to have relevant tests run as non-elevated
* [Feature]
Get-CredSSP returns text so only run that test if current culture is en-US
* [Feature] Update test to fix code exclusion
* [Feature] Fix Skipping on test cases that already had a Skip value
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