Rename ease-gateway to janus-gateway

What's Changed

• Janus by @binchencoder in #14

Full Changelog: v1.0.4...v2.0.0

Upgrade github.com/grpc-ecosystem/grpc-gateway version to v2.9.0

What's Changed

• Grpc gateway 290 by @binchencoder in #13
  Full Changelog: v1.0.1...v1.0.4

I hope it verified !!!

grpc-gateway-290

📢📢📢
One happy thing to announce, Ease-Gateway V1.0 is officially released

ChangeLog:

1. Based on com_github_grpc_ecosystem_grpc_gateway v1.14.6 synchronous / / gateway code;
2. Validation rules are defined in the proto file.

Update go.mod