openflow_input: add BSN extensions to OF 1.4
I left out the following extensions that are no longer used or have been
superceded by the standard:
- bsn_disable_split_horizon_check
- bsn_role_status
- bsn_global_vrf_allowed
diff --git a/openflow_input/bsn_l3_interface_class_id b/openflow_input/bsn_l3_interface_class_id
index 80d1e37..f16d333 100644
--- a/openflow_input/bsn_l3_interface_class_id
+++ b/openflow_input/bsn_l3_interface_class_id
@@ -30,6 +30,7 @@
#version 3
#version 4
+#version 5
/*
* L3 interface class ID for SwitchLight