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/ca65/global.h

@@ -61,7 +61,6 @@ extern unsigned char   	SmartMode;     	    /* Smart mode */
 extern unsigned char   	DbgSyms;       	    /* Add debug symbols */
 extern unsigned char   	Listing;            /* Create listing file */
 extern unsigned char   	LineCont;      	    /* Allow line continuation */
-extern unsigned char    DefAddrSize;        /* Default address size */
 
 /* Emulation features */
 extern unsigned char   	DollarIsPC;    	    /* Allow the $ symbol as current PC */