[Volunteer] Init websocket integration test

[yu199195]

Volunteer help

Hi community

This task is needed to test support for the sofa-rpc protocol.

you can add project in apache shenyu, The structure is as follows：

-----shenyu-integration-test -----------shenyu-integration-test-websocket

Don't worry, they are not very difficult, you can refer to：

• shenyu-integrated-test-http
• also you requires some knowledge of docker Please read the Contribution Guideline before submitting the PR

If you would like to participate, Please leave a message under this issue.

[JooKS-me]

hi, let me try to do it.