Refactor CoreProxy

registerTileEntity, addCraftingRecipe, addShapelessRecipe, and TakenFromCrafting
no longer need to be proxied through Buildcraft's CoreProxy; instead call into
FML's GameRegistry directly since there are no client/server differences.
Use ore dictionary for wooden planks in redstone engine recipe

Fixes crafting engines with new wooden plank types from ExtraBiomesXL.