Add support for mods

[cecilia-sanare]

Use Case

Some games effectively require mods before they'll run like they used to on modern hardware.

We should support the following:

• automatic patching to enable mods (if necessary)
• automatically installing specific necessary mods

The latter could be subjective so we should focus on primarily bug fixes.

Examples

• Fallout Series (has a lot of bugs fixed via mods and some fixed via config updates)