Add Registry Bounce

[Noggog]

Just pitching the idea of adding registry support. Currently mutagen uses GameFinder, but only if it cannot locate an installation in the registry:
https://github.com/Mutagen-Modding/Mutagen/blob/cf708daf0b89c643b94bf08c28e7ab2a719d9451/Mutagen.Bethesda.Core.Windows/Installs/DI/GameLocator.cs#L50

Might be nice to just bubble that up to this lib? Is there a specific reason registries are not considered?

This would also help with WJ "stock game" installs, which you can see some discussions here:
https://discord.com/channels/759302581448474626/883872997214158909/883872999562960906
https://discord.com/channels/605449136870916175/623261438022254612/883870322581962792

[erri120]

What exactly do you mean with

registry support

Most of the packages already access the registry to find the the Store installation, installed games or both.

[Noggog]

Mutagen has code to look at the registry for SOFTWARE\WOW6432Node\Bethesda Softworks\Skyrim Special Edition, as a lot of people complained their games weren't being located when just GameFinder was being used by itself. I was under the impression that GameFinder only returns results from the steam library files, and doesn't look for that registry key ^

Currently my logic is that I look in that registry first, and if it's not found, then I use GameFinder to search the steam installations