* Trim pwsh special chars when masking secrets
* Add pwsh valueEncoder
* Explain regex
* Update ValueEncoders.cs
* Add tests for pwsh color codes in secrets
* Formatting
* Group tests into theories
* Split secret on PS chars and mask for them
* Clean up comments
* Remove unused unittest
* Rename escape methods
The build warnings were of these type (mostly reported by xUnit's Code Analyzers):
- Fixed wrong parameter order in xUnit assertions (can lead to poor error reporting in test failures)
- Unused code was removed
- Correct assertions were used (e.g. Assert.True/.Contains/.EndsWith)
- Public non-test methods on test classes were made private
