Added test command for testing ore gen.

Started reimplementing quartz ore gen ontop of vanilla mechanics.
Fixes several sidedness issues.
Added recipe serialization for server->client sync.

src/main/java/appeng/recipes/handlers/GrinderRecipe.java

@@ -37,6 +37,11 @@ public class GrinderRecipe implements IRecipe<IInventory> {
         this.optionalResults = ImmutableList.copyOf(optionalResults);
     }
 
+    @Override
+    public String getGroup() {
+        return group;
+    }
+
     @Override
     public boolean matches(IInventory inv, World worldIn) {
         return this.ingredient.test(inv.getStackInSlot(0));