Implement approximate quantile kernel using tdigest util.

Reporter: Yibo Cai / @cyb70289
Assignee: Yibo Cai / @cyb70289

Related issues:

• [C++] Implement hash_aggregate approximate quantile kernel (is related to)

PRs and other links:

• GitHub Pull Request #9435

_{Note: This issue was originally created as ARROW-11541. Please see the migration documentation for further details.}