`Test-ScriptFileInfo` cmdlet

[StevenBucher98]

Summary of the new feature / enhancement

Validates a command block for a script. The comment block at the beginning of a script will be used in the Publish-Script cmdlet and this cmdlet helps check the validity of it. v2 Docs

Proposed technical implementation details (optional)

Parameters

-LiteralPath <string>
        Required?                    true
        Position?                    Named
        Accept pipeline input?       true (ByPropertyName)
        Parameter set name           LiteralPathParameterSet
        Aliases                      PSPath
        Dynamic?                     false
-Path <string>
        Required?                    true
        Position?                    0
        Accept pipeline input?       true (ByPropertyName)
        Parameter set name           PathParameterSet
        Aliases                      None
        Dynamic?                     false
<CommonParameters>

[alerickson]

Resolved #708