- added readonly pointers. They need to be defined with 'readonly<classtype>'. These are significantly different from declaring a field readonly in that they do not disallow modification of the variable itself but what it points to. For the actor defaults this is necessary to prevent accidental modification. A readonly pointer is actually a different type than a regular pointer.

- fixed code generation for dynamic cast. It was missing the jump instruction after the compare.

src/scripting/zscript/zcc_parser.h

@@ -310,6 +310,7 @@ struct ZCC_BasicType : ZCC_Type
 {
 	EZCCBuiltinType	Type;
 	ZCC_Identifier *UserType;
+	bool isconst;
 };
 
 struct ZCC_MapType : ZCC_Type