add missing defaults

library/net_infrastructure/bigip_monitor_http

@@ -330,6 +330,8 @@ def main():
         if port is None:
             port = cur_ipport['ipport']['port']
     else: # use API defaults if not defined to create it
+        if interval is None:        interval = 5
+        if timeout is None:         timeout = 16
         if ip is None:              ip = '0.0.0.0'
         if port is None:            port = 0
         if send is None:            send = ''
@@ -351,6 +353,8 @@ def main():
                          'port': port}}
 
     template_attributes = {'parent_template': parent,
+                           'interval': interval,
+                           'timeout': timeout,
                            'dest_ipport': ipport,
                            'is_read_only': False,
                            'is_directly_usable': True}