[VOL-3695]: Support to create some of the OLT device events over the Device Management Interface
    1. Following events and its corresponding recovered event creation is supported :
       EVENT_FAN_FAILURE
       EVENT_PSU_FAILURE
       EVENT_HW_DEVICE_TEMPERATURE_ABOVE_CRITICAL
    2. Following DMI Native Events Management Service APIs are implemented:
       ListEvents
       UpdateEventsConfiguration
    3. Updated docs/source/DMI_Server_README.md

Change-Id: Ibc48302b61fd52a2f83bd888731f611eaf6c4c37
diff --git a/api/bbsim/bbsim_dmi.proto b/api/bbsim/bbsim_dmi.proto
new file mode 100644
index 0000000..c560598
--- /dev/null
+++ b/api/bbsim/bbsim_dmi.proto
@@ -0,0 +1,32 @@
+// Copyright (c) 2018 Open Networking Foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at:
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// 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 License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+package bbsim;
+
+
+message DmiEvent {
+   string event_name= 1;
+}
+
+message DmiCreateEventResponse {
+    int32 status_code = 1;
+    string message = 2;
+}
+
+service BBsim_dmi {
+    // Ask the DMI Server to create an event
+    rpc CreateEvent (DmiEvent) returns (DmiCreateEventResponse){
+    }
+}