test: Introduce integration test framework.

[liurenjie1024]

This pr introduces an integration test framework which utilizes sqllogictest-rs to build data driven test cases.

[ZENOTME]

Thanks @liurenjie1024! This PR is great. After #349, I can also help to migrate our e2e test using this test framework. It's helpful for us to test using different query engines or SDKs. #349 (comment)

[liurenjie1024]

Thanks @liurenjie1024! This PR is great. After #349, I can also help to migrate our e2e test using this test framework. It's helpful for us to test using different query engines or SDKs. #349 (comment)

Yeah, I'll find time to split this pr into smaller part to merge them.

[xxchan]

We already have one integration-test (with spark) data datafusion-integration-test. They seem to overlap to some extent. Perhaps we can decide to all in one of them in the future.

[liurenjie1024]

We already have one integration-test (with spark) data datafusion-integration-test. They seem to overlap to some extent. Perhaps we can decide to all in one of them in the future.

Yes, the goal of this framework is to simplify those integration tests.