Apple2: Add file_set_type() and file_set_auxtype()

MLI wrapper to be able to update existing ProDOS
files' type and auxtype.

include/apple2.h

@@ -294,6 +294,12 @@ unsigned char get_tv (void);
 unsigned char get_ostype (void);
 /* Get the machine type. Returns one of the APPLE_xxx codes. */
 
+int __fastcall__ file_set_type(const char *pathname, unsigned char type);
+/* Sets the ProDOS type for the file, returns 0 on success, sets errno on failure */
+
+int __fastcall__ file_set_auxtype(const char *pathname, unsigned int auxtype);
+/* Sets the ProDOS auxtype for the file, returns 0 on success, sets errno on failure */
+
 void rebootafterexit (void);
 /* Reboot machine after program termination has completed. */
 

include/apple2_filetype.h

@@ -318,5 +318,7 @@
 extern unsigned char _filetype;  /* Default: PRODOS_T_BIN */
 extern unsigned int _auxtype;    /* Default: 0            */
 
+
+
 /* End of apple2_filetype.h */
 #endif