Refator:

1. Move BindXXX core logic to context.Context for two reasons:
   1.1 Controller should be stateless -- Due to historical reason, it's hard for us to do this but we should try it
   1.2 If users didn't use Controller to write their functions, they should be allowed to use those methods
2. Move XXXResp to context.Context

.gitignore

@@ -12,4 +12,6 @@ pkg/_beeTmp2/
 test/tmp/
 core/config/env/pkg/
 
+my save path/
+
 profile.out