Add group rule service, purge flood rules, use group to handle ARP

Change-Id: If0db889d6ab28a4d36f433f16bf84241d2726045
diff --git a/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/api/Constants.java b/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/api/Constants.java
index 6475a7a..891b1ee 100644
--- a/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/api/Constants.java
+++ b/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/api/Constants.java
@@ -68,7 +68,6 @@
     public static final String UNSUPPORTED_VENDOR = "unsupported_vendor";
 
     public static final int PRIORITY_TUNNEL_TAG_RULE = 30000;
-    public static final int PRIORITY_FLOATING_INTERNAL = 42000;
     public static final int PRIORITY_FLOATING_EXTERNAL = 41000;
     public static final int PRIORITY_STATEFUL_SNAT_RULE = 40500;
     public static final int PRIORITY_ICMP_RULE = 43000;
@@ -79,7 +78,6 @@
     public static final int PRIORITY_SNAT_RULE = 26000;
     public static final int PRIORITY_SWITCHING_RULE = 30000;
     public static final int PRIORITY_FLAT_JUMP_UPSTREAM_RULE = 41000;
-    public static final int PRIORITY_FLAT_JUMP_DOWNSTREAM_RULE = 41000;
     public static final int PRIORITY_FLAT_UPSTREAM_RULE = 41000;
     public static final int PRIORITY_FLAT_DOWNSTREAM_RULE = 42000;
     public static final int PRIORITY_DHCP_RULE = 42000;
@@ -90,11 +88,10 @@
     public static final int PRIORITY_CT_RULE = 32000;
     public static final int PRIORITY_CT_DROP_RULE = 32500;
     public static final int PRIORITY_ARP_GATEWAY_RULE = 41000;
-    public static final int PRIORITY_ARP_SUBNET_RULE = 40000;
     public static final int PRIORITY_ARP_CONTROL_RULE = 40000;
     public static final int PRIORITY_ARP_REPLY_RULE = 40000;
     public static final int PRIORITY_ARP_REQUEST_RULE = 40000;
-    public static final int PRIORITY_ARP_FLOOD_RULE = 39000;
+    public static final int PRIORITY_ARP_GROUP_RULE = 39000;
     public static final int PRIORITY_FORCED_ACL_RULE = 50000;
     public static final int PRIORITY_ICMP_PROBE_RULE = 50000;