重构NetManager支持MessagePair，新增TSRPCWsClient。

client/assets/scripts/App/Msg/Pair/SendMessagePair.ts

@@ -0,0 +1,19 @@
+import { MsgReqSend } from '../../../Shared/protocols/MsgReqSend';
+import { MsgResSend } from '../../../Shared/protocols/MsgResSend';
+import { MessagePair } from '../MessagePairBase';
+
+/**
+ * 发送消息对实现
+ */
+export class SendMessagePair extends MessagePair<MsgReqSend, MsgResSend> {
+    readonly requestName = 'ReqSend';
+    readonly responseName = 'ResSend';
+
+    isValidRequest(msg: any): msg is MsgReqSend {
+        return msg && typeof msg.content === 'string';
+    }
+
+    isValidResponse(msg: any): msg is MsgResSend {
+        return msg && msg.time instanceof Date;
+    }
+}