Get-AuthenticodeSignature: Add embedded cert opt

[LLotme]

Added the ability to retrieve an embedded authenticode signture of a file that ignores any certificates inside a .cat file. This is done through a new switch parameter -EmbeddedOnly on the Get-AuthenticodeSignature cmdlet.

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[LLotme]

👍

[LLotme]

👍 gh pr checkout 23846

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