Provides group version support for the reflection service

[FinalT]

trafficstars

At present, triple protocol already supports group, version. It is necessary to provide group, version support for reflection service

[chickenlj]

What does reflection service specifically refer to?

[chickenlj]

Does that mean services that are not defined using protobuf(IDL)？

[FinalT]

The reflection server service specific refers to the directory protocol/triple/reflection