Optimizer: Add partition by support for derived TopN(filter on row_number)

[ghazalfamilyusa]

Issue Number: Ref #39792

Problem Summary:

This is a continuation of #41209 which introduced deriving top N from "row_number as RN ... where RN <= N". This PR adds support for partition by in the window function "row_number as RN over (partition by X) ... where RN <= N" and restricted if the partition by is a prefix of the PK. Execution support for this extension is here tikv/tikv#14116

Tests

Unit tests

Side effects

None

Documentation

None

Release note

None

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[ti-chi-bot]

@ghazalfamilyusa: PR needs rebase.

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@ghazalfamilyusa: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
idc-jenkins-ci-tidb/unit-test	68a61de	link	true	/test unit-test
idc-jenkins-ci-tidb/mysql-test	68a61de	link	true	/test mysql-test
idc-jenkins-ci-tidb/check_dev	68a61de	link	true	/test check-dev
idc-jenkins-ci-tidb/build	68a61de	link	true	/test build
idc-jenkins-ci-tidb/check_dev_2	68a61de	link	true	/test check-dev2

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