Enhancement: Mark already-depleted miners when added to existing save

[robot256]

Currently, when the mod is added to an existing save, only newly-depleted miners are marked for deconstruction (at least on non-Nauvis surfaces).

When adding Auto Deconstruct to an existing game, which already has some depleted miners/chests, it would be really nice for the mod to scan all the surfaces in the game and flag them for deconstruction as soon as the game is loaded. This should be a mod setting (probably a startup setting) in case it causes performance issues.

[Myricaulus]

Yes on initializing it only checks the nauvis surface, where it should check all miners for depletion. I can confirm from the Code that on other surface it indeed does not.

[robot256]

Looks like pull request #11 includes the multi-surface fix.