[WIP][HUDI-4345] Enable partition pruning and projection for incremental query on COW table

[yihua]

What is the purpose of the pull request

This PR refactors IncrementalRelation to enable partition pruning and projection for incremental query on COW table.

Brief change log

Verify this pull request

This pull request is already covered by existing tests.

Committer checklist

• [ ] Has a corresponding JIRA in PR title & commit

• [ ] Commit message is descriptive of the change

• [ ] CI is green

• [ ] Necessary doc changes done or have another open PR

• [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.

[nsivabalan]

@alexeykudinkin : can you review this PR.