Would be nice to have whitelist ability to fine tune which ores are needed most~

When I added the blacklist, I considered that but decided it would be a bit too op. I suppose you could get around it by making the output container only accept the desired items, but I don't think I should add that to the mod itself. Maybe I'll try adding a system that can be turned off in the config.

Throwing in my two cents as I just turned on my ore harvester for the first time in a while only to be drowned in ores; how about a GUI that contains the ores you have found on your adventures? It could possibly replace the key however would save space and resources for the player by allowing them to just check a box for the ore they want to generate.