add go api, wrap C api, not finished.

lichao

2021-04-20 ca319178f45ce6256aed7913565d445571f6db22

 proto/source/error_msg.proto

@@ -1,8 +1,9 @@
syntax = "proto3";

option optimize_for = LITE_RUNTIME;
option go_package="./bhome_msg";

package bhome.msg;
package bhome_msg;

enum ErrorCode {
    eSuccess = 0;