feat:rpc gs增加gm接口

gs/api/api.proto

@@ -0,0 +1,22 @@
+syntax = "proto3";
+
+package gs.api;
+option go_package = "hk4e/gs/api;api";
+
+//import "natsrpc.proto";
+//import "testdata.proto";
+
+// GM 服务
+service GM {
+  rpc Cmd (CmdRequest) returns (CmdReply) {}
+}
+
+message CmdRequest  {
+  string func_name = 1;
+  repeated string param = 2;
+}
+
+message CmdReply  {
+  int32 code = 1; // 0 表示成功
+  string message = 2;
+}