Major Refactoring of Bootstrap Code (#75)

- Refactored boostrap code:
  * Completely reworked item/block/tile registration.
  * Fixed server side startup.
  * Fixed server side startup.
  * More documentation.
  * More heavy cleanup
  * More cleanups.
  * Major refactoring of state mapping and fixes a lot of other issue related to item rendering.
  * Fixes sky chest item models (no item TESR).
  * Only use CachingRotatingBakedModel for tile entities automatically.
  Fix default rotation of quartz pillar for item model.
  * Used method reference instead of lambda for ItemMeshDefinition for multiparts.
  * Removed unnecessary IHasSpecialItemModel
  * Removed unused IconReg class.
  * Updated resource pack version.

src/main/java/appeng/bootstrap/IItemBuilder.java

@@ -0,0 +1,28 @@
+package appeng.bootstrap;
+
+
+import net.minecraft.creativetab.CreativeTabs;
+
+import appeng.core.features.AEFeature;
+import appeng.core.features.ItemDefinition;
+import appeng.util.Platform;
+
+
+/**
+ * Allows an item to be defined and registered with the game.
+ * The item is only registered once build is called.
+ */
+public interface IItemBuilder
+{
+
+	IItemBuilder features( AEFeature... features );
+
+	IItemBuilder addFeatures( AEFeature... features );
+
+	IItemBuilder creativeTab( CreativeTabs tab );
+
+	IItemBuilder rendering( ItemRenderingCustomizer callback );
+
+	ItemDefinition build();
+
+}