Move multicast.h to include/hamlib and fix some other things

https://github.com/Hamlib/Hamlib/issues/695

include/Makefile.am

@@ -3,4 +3,4 @@ noinst_HEADERS = bandplan.h num_stdio.h
 nobase_include_HEADERS = hamlib/rig.h hamlib/riglist.h hamlib/rig_dll.h \
 		hamlib/rotator.h hamlib/rotlist.h hamlib/rigclass.h \
 		hamlib/rotclass.h hamlib/amplifier.h hamlib/amplist.h \
-		hamlib/ampclass.h hamlib/config.h
+		hamlib/ampclass.h hamlib/config.h hamlib/multicast.h

include/hamlib/rig.h

@@ -2480,7 +2480,7 @@ struct rig_cache {
  * \brief Multicast data items the are unique per rig instantiation
  * This is meant for internal Hamlib use only
  */
-#include <multicast.h>
+#include <hamlib/multicast.h>
 struct multicast_s
 {
     int multicast_running;

src/multicast.c

@@ -178,9 +178,9 @@ void json_add_vfoA(RIG *rig, char *msg)
         json_add_int(msg, "Width", rig->state.cache.widthMainA, 0);
     }
 
+#if 0 // not working quite yet
     // what about full duplex? rx_vfo would be in rx all the time?
     rig_debug(RIG_DEBUG_ERR, "%s: rx_vfo=%s, tx_vfo=%s, split=%d\n", __func__, rig_strvfo(rig->state.rx_vfo), rig_strvfo(rig->state.tx_vfo), rig->state.cache.split);
-#if 0 // not working quite yet
     printf("%s: rx_vfo=%s, tx_vfo=%s, split=%d\n", __func__, rig_strvfo(rig->state.rx_vfo), rig_strvfo(rig->state.tx_vfo), rig->state.cache.split);
     if (rig->state.cache.split)
     {