Method add

src/main/java/gregapi/code/ItemStackSet.java:73–75

(ModData aMod, String aName, long aMeta)

		return mMap.containsKey(aStack, aWildCard);
	}
	public boolean add(ModData aMod, String aName, long aMeta) {
		return add(ST.make(aMod, aName, 1, aMeta));
	}
	public boolean add(ItemStack aStack) {
		return ST.valid(aStack) && mMap.put(aStack, OBJECT) == null;
	}