add groups

src/zm_monitor.h

@@ -31,6 +31,7 @@
 #include "zm_zone.h"
 #include "zm_event.h"
 class Monitor;
+#include "zm_group.h"
 #include "zm_camera.h"
 #include "zm_storage.h"
 #include "zm_utils.h"
@@ -343,6 +344,8 @@ protected:
   int      n_linked_monitors;
   MonitorLink    **linked_monitors;
 
+  std::list<Group *> groups;
+
 public:
   explicit Monitor( int p_id );
 
@@ -503,6 +506,7 @@ public:
 
   bool DumpSettings( char *output, bool verbose );
   void DumpZoneImage( const char *zone_string=0 );
+  std::list<Group *>  Groups();
 
   static int LoadMonitors(std::string sql, Monitor **&monitors, Purpose purpose);  // Returns # of Monitors loaded, 0 on failure.
 #if ZM_HAS_V4L