New Farm Minesa, MineResetLite conversion and bug fixes.
+ Added Farm Mines! These mines are 1 height mines that only have crops as their blocks. (Thanks bffjaydan for the suggestion!)
+ Added MineResetLite mine conversion! with: /rm import MRL
+ Added /rm blocks <mine> to directly view the mine's blocks
+ Fixed bug regarding mine's mined block count not updating.
+ Fixed bug where the mine list panel would crash if no mines were created.
+ Changed /rm panel <mine> to /rm mine <mine>