Added new_card function;

Added parameter to ScriptValue::next to recieve the key of the item.
Finished Add Multiple Cards behaviour.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@1147 0fc631ac-6414-0410-93d0-97cfa31319b6

src/script/value.hpp

@@ -105,7 +105,8 @@ class ScriptValue : public IntrusivePtrBaseWithDelete {
 	/** thisP can be used to prevent destruction of the collection */
 	virtual ScriptValueP makeIterator(const ScriptValueP& thisP) const;
 	/// Return the next item for this iterator, or ScriptValueP() if there is no such item
-	virtual ScriptValueP next();
+	/** If key_out != 0, then it will recieve the key of the item */
+	virtual ScriptValueP next(ScriptValueP* key_out = nullptr);
 	/// Return the number of items in this value (assuming it is a collection)
 	virtual int itemCount() const;
 	/// Get a member at the given index