Add TARGETABLE_COMMON to rig.h

include/hamlib/rig.h

@@ -473,6 +473,7 @@ typedef unsigned int vfo_t;
 #define RIG_TARGETABLE_PTT (1<<7)
 #define RIG_TARGETABLE_MEM (1<<8)
 #define RIG_TARGETABLE_BANK (1<<9)
+#define RIG_TARGETABLE_COMMON (RIG_TARGETABLE_RITXIT | RIG_TARGETABLE_PTT | RIG_TARGETABLE_MEM | RIG_TARGETABLE_BANK)
 #define RIG_TARGETABLE_ALL  0x7fffffff
 //! @endcond
 //