Added oreQuartz

Gives a default quartz Ore Dictionary (I know of at least 3 used by different mods that use Nether Quartz as an equivalent).

common/net/minecraftforge/oredict/OreDictionary.java

@@ -55,6 +55,7 @@ public class OreDictionary
             registerOre("oreDiamond", Block.oreDiamond);
             registerOre("oreRedstone", Block.oreRedstone);
             registerOre("oreEmerald", Block.oreEmerald);
+            registerOre("oreQuartz", Block.oreNetherQuartz);
         }
 
         // Build our list of items to replace with ore tags