Aali patch version management

[picklejar76]

Note: This issue is "part 2" that would be an enhancement if 7H is ever enhanced to include Aali's patch ("part 1"), for example see the other issue about including a lightweight game converter.

Since Aali's patch is constantly under development, long-term, it might best to grab the Aali patch from an external location, with versioning. Perhaps a separate GitHub that stores snapshots of different releases.

There should also be a mechanism for 7H to determine whether the driver is already installed, and if so, which version, ideally. (Perhaps by a checksum stored alongside each version snapshot in GitHub.)