Added parsing of ui, play, allowui and const qualifiers

src/scripting/zscript/zcc_parser.h

@@ -38,6 +38,9 @@ enum
 	ZCC_Transient		= 1 << 15,
 	ZCC_VarArg			= 1 << 16,
 	ZCC_NoNew			= 1 << 17,
+	ZCC_UIFlag			= 1 << 18, // there's also token called ZCC_UI
+	ZCC_Play			= 1 << 19,
+	ZCC_AllowUI			= 1 << 20,
 };
 
 // Function parameter modifiers