Broke OreCoreItems into separate classes based on type (eg: copper)
Switched recipes to use ore dictionary.
Moved all item IDs into one file.
Started work on Bronze.
Bronze implemented.
Sanitized crafting a bit more.  Now it should pick up all entries from ore dictionary, regardless of mod load order.

Added copper and tin gravel to allow the player some way of getting copper and tin dust in vanilla+orecore and no other mods.
Added ore-gen
Gravels now work like gravel, not stone.
Added silver
Added CopperIICarbonate items.
Updated English item names.