VOL-3419: OpenOLT adapter at scale constantly takes more that 10 seconds to react to flows
- Pass information to agent to do the flow replication
- Consolidate various locks in the adapter and remove reduntant locks
- use voltha-proto version 4.0.2 and voltha-lib-go version 4.0.0
- Bump adapter version to 3.0.0

Change-Id: Ic053c54e5319bb1736ec74facfc79dd10058ecf5
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/events_proxy_if.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/events_proxy_if.go
new file mode 100644
index 0000000..7d8a053
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif/events_proxy_if.go
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2018-present 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.
+ */
+
+package adapterif
+
+import (
+	"context"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+)
+
+// EventProxy interface for eventproxy
+type EventProxy interface {
+	SendDeviceEvent(ctx context.Context, deviceEvent *voltha.DeviceEvent, category EventCategory,
+		subCategory EventSubCategory, raisedTs int64) error
+	SendKpiEvent(ctx context.Context, id string, deviceEvent *voltha.KpiEvent2, category EventCategory,
+		subCategory EventSubCategory, raisedTs int64) error
+}
+
+const (
+	EventTypeVersion = "0.1"
+)
+
+type (
+	EventType        = voltha.EventType_Types
+	EventCategory    = voltha.EventCategory_Types
+	EventSubCategory = voltha.EventSubCategory_Types
+)