Added API classes for Piles and Cogs called CogRegistry.java, MetalPileRegistry.java, CogRecipeHelper.java and MetalPileRecipeHandler

Fixed some bugs

Added Lists.java file now all blocks on start up get added to ArrayLists tjust to Lists.get<List Type>() to get an instance of them

Signed-off-by: WARDOGSK93 <wayne3006@hotmail.co.uk>