- fixed some issues with the grammar for parsing states:

* Goto did not support the class scope operator '::'. Like in DECORATE, this cannot be done with a simple '.' because it creates semantic problems with first part of a state label. This requires different syntax so that it can unambiguously distinguish between a scope identifier and the actual label
 * Goto used the incorrect token PLUS for '+' instead of ADD.
 * The state's duration was not stored in the AST.
 * Truncating the sprite name inside the parser is probably not the best idea because it used a simple Printf to report this. Let's do this during processing of the AST where this can be properly handled as an error.

src/zscript/zcc_parser.h

@@ -260,19 +260,21 @@ struct ZCC_Expression : ZCC_TreeNode
 
 struct ZCC_StateGoto : ZCC_StatePart
 {
+	ZCC_Identifier *Qualifier;
 	ZCC_Identifier *Label;
 	ZCC_Expression *Offset;
 };
 
 struct ZCC_StateLine : ZCC_StatePart
 {
-	char Sprite[4];
+	FString *Sprite;
 	BITFIELD bBright : 1;
 	BITFIELD bFast : 1;
 	BITFIELD bSlow : 1;
 	BITFIELD bNoDelay : 1;
 	BITFIELD bCanRaise : 1;
 	FString *Frames;
+	ZCC_Expression *Duration;
 	ZCC_Expression *Offset;
 	ZCC_TreeNode *Action;
 };