[VL] Add vanilla unit tests from Delta Lake

### Description

We can maintain copies of essential Delta Lake tests in Gluten's code base for coverage of Gluten + Delta.

Moving forward, we may need a way to leverage Delta's unit tests with less code change to Gluten. Maybe by downloading the test code during compilation time, or by release a test jar by ourselves.

### Gluten version

None

Start by reviewing Gluten's existing test layout and the Delta Lake unit tests the issue proposes copying. Compare the required Gluten changes and assess whether compilation-time downloads or a separately released test JAR is viable. Done means an agreed approach is implemented with essential Delta coverage running in Gluten.

Written by the indexing model from the issue text.