map token_t to hamlib_token_t for API backwards compatility

https://github.com/Hamlib/Hamlib/issues/1469

include/hamlib/rig.h

@@ -847,6 +847,7 @@ typedef enum {
  * \brief configuration token
  */
 typedef long hamlib_token_t;
+#define token_t hamlib_token_t
 
 
 //! @cond Doxygen_Suppress