Change how blocks/items are registered (desc)

tterrag is a meany face and yelled at me for using class.getSimpleName(). So here's an API-friendly re-work of the registration system. This allows all our Items/Blocks to be obtained via the API. Just add a new enum.

src/main/java/WayofTime/bloodmagic/item/ItemDaggerOfSacrifice.java

@@ -24,6 +24,7 @@ public class ItemDaggerOfSacrifice extends Item
     {
         super();
         setUnlocalizedName(Constants.Mod.MODID + ".daggerOfSacrifice");
+        setRegistryName(Constants.BloodMagicItem.DAGGER_OF_SACRIFICE.getRegName());
         setCreativeTab(BloodMagic.tabBloodMagic);
         setMaxStackSize(1);
         setFull3D();