Add vrf counter request/reply.

Add OFP_BSN_VLAN_ALL constant to request counters for all vlans.
diff --git a/openflow_input/bsn_vrf_counter b/openflow_input/bsn_vrf_counter
new file mode 100644
index 0000000..538a62f
--- /dev/null
+++ b/openflow_input/bsn_vrf_counter
@@ -0,0 +1,73 @@
+// Copyright 2014, Big Switch Networks, Inc.
+//
+// LoxiGen is licensed under the Eclipse Public License,
+// version 1.0 (EPL), with the following special exception:
+//
+// LOXI Exception
+//
+// As a special exception to the terms of the EPL, you may
+// distribute libraries generated by LoxiGen (LoxiGen Libraries)
+// under the terms of your choice, provided that copyright and
+// licensing notices generated by LoxiGen are not altered or removed
+// from the LoxiGen Libraries and the notice provided below is (i)
+// included in the LoxiGen Libraries, if distributed in source code
+// form and (ii) included in any documentation for the LoxiGen
+// Libraries, if distributed in binary form.
+//
+// Notice: "Copyright 2013, Big Switch Networks, Inc.
+// This library was generated by the LoxiGen Compiler."
+//
+// You may not use this file except in compliance with the EPL or
+// LOXI Exception. You may obtain a copy of the EPL at:
+//
+// http://www.eclipse.org/legal/epl-v10.html
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an "AS
+// IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+// express or implied. See the EPL for the specific language
+// governing permissions and limitations under the EPL.
+
+#version 4
+
+enum ofp_bsn_vrf_counter_constants {
+    OFP_BSN_VRF_ALL = 0xffff,
+};
+
+enum of_bsn_vrf_counter_t(wire_type=uint8_t, complete=False) {
+  OFP_BSN_VRF_COUNTER_BYTES = 0,
+  OFP_BSN_VRF_COUNTER_PACKETS = 1,
+};
+
+struct of_bsn_vrf_counter_stats_request : of_bsn_stats_request {
+    uint8_t version;
+    uint8_t type == 18;
+    uint16_t length;
+    uint32_t xid;
+    uint16_t stats_type == 0xffff;
+    enum ofp_stats_request_flags flags;
+    pad(4);
+    uint32_t experimenter == 0x5c16c7;
+    uint32_t subtype == 15;
+    uint32_t vrf;
+};
+
+struct of_bsn_vrf_counter_stats_entry {
+    uint16_t length;
+    pad(2);
+    uint32_t vrf;
+    list(of_uint64_t) values;
+};
+
+struct of_bsn_vrf_counter_stats_reply : of_bsn_stats_reply {
+    uint8_t version;
+    uint8_t type == 19;
+    uint16_t length;
+    uint32_t xid;
+    uint16_t stats_type == 0xffff;
+    enum ofp_stats_reply_flags flags;
+    pad(4);
+    uint32_t experimenter == 0x5c16c7;
+    uint32_t subtype == 15;
+    list(of_bsn_vrf_counter_stats_entry_t) entries;
+};