Fix WildcardPatternException when using dt in P

[fflaten]

PR Summary

Tests with special characters in name would fail during filter-evaluation.

Example pre-PR:

. '/workspaces/Pester/tst/Pester.RSpec.TestResults.NUnit3.ts.ps1'
                                                                                                                        
| - Write NUnit3 test results 
WildcardPatternException: The specified wildcard character pattern is not valid: *handles special characters well -!@#$%^&*()_+1234567890[];',./"-

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• Tests are added/update (if required)
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[nohwnd]

I did not know there is Escape for -like. 👍