Implement Get-Encoding

[StefanGreve]

This Cmdlet should return a custom object with the following properties

• LineEndings: CRLF or LF (as string values)
• Encoding: compare remark [1] (as an enum)

There have been a couple of implementation attempts in the past, though their reliability
is sometimes questionable [2] [3].

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[1]: List of common character encodings: https://en.wikipedia.org/wiki/Character_encoding
[2]: C# code from SO: https://stackoverflow.com/a/62814282/10827244
[3]: Some godforsaken batch function, also from SO: https://stackoverflow.com/a/43147510/10827244