[Feature] Add tidb datatype convertor

[XiaoJiang521]

Purpose of this pull request

Check list

• Code changed are covered with tests, or it does not need tests for reason:
• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update change log that in connector document. For more details you can refer to connector-v2
  2. Update plugin-mapping.properties and add new connector information in it
  3. Update the pom file of seatunnel-dist
• Update the release-note.

[Hisoka-X]

Shall we add some test case for it?

[XiaoJiang521]

Shall we add some test case for it?

If need to add test cases, I can also add, but I don't know how to test this，
and only Seatunnel Web uses this datatypeconvorter,

[Hisoka-X]

Shall we add some test case for it?

If need to add test cases, I can also add, but I don't know how to test this， and only Seatunnel Web uses this datatypeconvorter,

Got it.

[Hisoka-X]

contains what?

[XiaoJiang521]

contains properties. This place uses MysqlDataTypeConvertor, so take the annotations too QAQ

[ruanwenjun]

+1