Linux support (Real)

[Rune580]

Had to make a few changes in order to allow this to work on Linux. Tested the full flow this time.

• Adds Linux platform detection and a Linux AssetRipper executable allowing usage under Linux.
• Apply Linux specific path changes to AssetRipper contents when running on Linux.

I built the Linux AssetRipper executable using your fork of AssetRipper.

I have not tested this PR on a windows machine (I don't have one). So please try this on windows to make sure I didn't break it.

[Rune580]

Closing in favor of #14