Extend the object code format by adding a (currently empty) scope table.

Use the address size for import, export and debug symbols (object code
change).
More changes to support the --memory-model switch and address sizes.


git-svn-id: svn://svn.cc65.org/cc65/trunk@2691 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ld65/dbgsyms.h

@@ -65,6 +65,7 @@ struct DbgSym {
     ExprNode*  		Expr;		/* Expression (0 if not def'd) */
     unsigned            Name;  	       	/* Name */
     unsigned char	Type;		/* Type of symbol */
+    unsigned char       AddrSize;       /* Address size of symbol */
 };