add files

funasr_local/runtime/python/grpc/proto/Readme.md

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+```	
+service ASR { //grpc service
+  rpc Recognize (stream Request) returns (stream Response) {} //Stub
+}
+
+message Request { //request data
+  bytes audio_data = 1; //audio data in bytes.
+  string user = 2; //user allowed.
+  string language = 3; //language, zh-CN for now.
+  bool speaking = 4; //flag for speaking. 
+  bool isEnd = 5; //flag for end. set isEnd to true when you stop asr:
+  //vad:is_speech then speaking=True & isEnd = False, audio data will be appended for the specfied user.
+  //vad:silence then speaking=False & isEnd = False, clear audio buffer and do asr inference.
+}
+
+message Response { //response data.
+  string sentence = 1; //json, includes flag for success and asr text .
+  string user = 2; //same to request user.
+  string language = 3; //same to request language.
+  string action = 4; //server status:
+  //terminate：asr stopped; 
+  //speaking：user is speaking, audio data is appended; 
+  //decoding: server is decoding; 
+  //finish: get asr text, most used.
+}

funasr_local/runtime/python/grpc/proto/paraformer.proto

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+// Copyright (c) 2021 Ximalaya Speech Team (Xiang Lyu)
+//
+// 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";
+
+option java_package = "ex.grpc";
+option objc_class_prefix = "paraformer";
+
+package paraformer;
+
+service ASR {
+  rpc Recognize (stream Request) returns (stream Response) {}
+}
+
+message Request {
+  bytes audio_data = 1;
+  string user = 2;
+  string language = 3;
+  bool speaking = 4;
+  bool isEnd = 5;
+}
+
+message Response {
+  string sentence = 1;
+  string user = 2;
+  string language = 3;
+  string action = 4;
+}