Proposal: add API based end-to-end (aka e2e) testing

[LinuxSuRen]

Describe the feature

I'm the author of api-testing which is an API testing tool. It seems that no e2e testing in this project. I'd be happy to implement it if you believe it's worth.

In order to let you have a quick kowning about it. Please see also the user's of api-testing.

This is an example https://github.com/apache/hertzbeat/tree/master/e2e. It's pretty simple, see the basic steps:

• write the test cases in YAML format manually
• start the server via docker-compose or other ways
• run the test cases via the command atest
• stop the CI when the testing is failed

It supports a variety of validations to check if the HTTP API response is ok.