Enabled block states ignoring properties

Enabled block states ignoring. File with same name as block state, but
with .ignore.json extension. Although it's json extension, it is NOT IN
JSON FORMAT!!! Each line is name of property to ignore. Refers to #10.

src/main/java/appeng/client/ClientHelper.java

@@ -93,6 +93,10 @@ public class ClientHelper extends ServerHelper
 	{
 		MinecraftForge.EVENT_BUS.register( this );
 		ModelLoaderRegistry.registerLoader( UVLModelLoader.INSTANCE );
+		for( IAEFeature feature : Api.INSTANCE.definitions().getFeatureRegistry().getRegisteredFeatures() )
+		{
+			feature.handler().registerStateMapper();
+		}
 	}
 
 	@Override