PS6 Compatibility

[corbob]

Probably not of much concern as PS6 is cross platform, and the module is decidedly not. Would still be good to be able to load it in PS6 if so desired.

Things that are known to not work in PS6:
Compare-FilePath
Compare-File
Get-MyFileHash
Anything that uses wmiobject calls.

[corbob]

Potential fix for Get-MyFileHash (and by extension Compare-FilePath and Compare-File) in a branch on my fork: https://github.com/corbob/PSSoftware/tree/Fix-Get-MyFileHash

Need to still sort out the RIPEMD160 hashing algorithm as it doesn't appear to be available in the same way on PS6.