Fallback Resource Locations

[xackery]

Is your feature request related to a problem? Please describe.
No. This is a new feature.

Describe the solution you'd like

Add the ability in Settings adding a list of paths, "Fallback Resource Locations".

Describe alternatives you've considered

1. You can set modpack "resource download location" to their own directory unique directory. Pros: When you're done with a modpack, you can delete it forever. Cons: If another modpacks you download later share the same resource mod, it will have to be repeat downloaded.
2. You can share a single directory for resource download location for all modpacks. Pros: Never have cache misses. Cons: End up with a huge, mess of potentially orphaned mods over time.

Additional context

So to remedy this, inside settings, add a "fallback resource location" section. When you begin the download process as you do today, you direct wj to "scan from this list of paths. If the mod is not in any of them, download it." This way, when multiple modpacks share the same mod, you won't repeat download.

This essentially gives best of both 1 and 2.

[github-actions]

Marked as stale due to no interactions in the last 90 days. If the issue still exists, please provide any possibly still needed information or excuse the devs for not getting around to addressing this issue yet. If this issue is still considered unsolved a dev will soon remove the stale tag from this issue.

[github-actions]

Closed due to inactivity. Please create a new issue if this problem has come up again and no dev has reopened this issue after a week of it being marked as closed.