Bring listener operations naming scheme in line with the rest

The main naming scheme is OPER_TYPE (i.e., dds_create_participant) but the listener operations were named TYPE_OPER (i.e., dds_listener_create). This commit brings the listener scheme in line with the rest, retaining the old names as a deprecated interface.

Signed-off-by: Erik Boasson <eb@ilities.com>

src/examples/roundtrip/pong.c

@@ -105,7 +105,7 @@ int main (int argc, char *argv[])
 
   if (use_listener)
   {
-    listener = dds_listener_create(NULL);
+    listener = dds_create_listener(NULL);
     dds_lset_data_available(listener, data_available);
   }