ip: add ip_table_allocate to api

Set tableID = ~0 for auto selection unused ID

https://jira.fd.io/browse/VPP-1993

Type: improvement
Change-Id: I4eec2cc1d18fc025196cb6ac4c9a4b374388eb56
Signed-off-by: Artem Glazychev <artem.glazychev@xored.com>
Signed-off-by: Aloys Augustin <aloaugus@cisco.com>
diff --git a/src/vnet/ip/ip_test.c b/src/vnet/ip/ip_test.c
index 2de8235..6bdeca5 100644
--- a/src/vnet/ip/ip_test.c
+++ b/src/vnet/ip/ip_test.c
@@ -524,6 +524,17 @@
   return ret;
 }
 
+static int
+api_ip_table_allocate (vat_main_t *vam)
+{
+  return -1;
+}
+
+static void
+vl_api_ip_table_allocate_reply_t_handler (vl_api_ip_table_allocate_reply_t *mp)
+{
+}
+
 static void
 vl_api_ip_route_add_del_v2_reply_t_handler (
   vl_api_ip_route_add_del_v2_reply_t *mp)