Renamed ThisMod to TheMod
Renamed Blocks to ModBlocks
Renamed Items to ModItems
Moved Mod constants closer to the frontlines.
Refactored constants to be closer to where they are needed
Moved remaining constants to TheMod
Use of _ as an enum constant may not be allowed in JavaSE 1.8+
Refactor ModItems
Remove unneeded render IDs
Merge branch 'feature/refactor' into develop