[api-draft][connector] Add SeaTunnel jdbc sink (#1946)

[ic4y]

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/incubator-seatunnel/tree/dev/docs

related to #1946

I have tested mysql and postgres on flink. Pass the test below

• batch model open exactly_once
• batch model close exactly_once
• streaming model open exactly_once
• streaming model close exactly_once

example mysql config:

sink {
    jdbc {

        url = "jdbc:mysql://localhost/test"
        driver = "com.mysql.cj.jdbc.Driver"
        connection_check_timeout_sec = 10
        max_retries = 0
        user = "root"
        password = "123456"
        query = "insert into test_table(name,age) values(?,?)"
        parallelism = "2"

        batch_size = 10
        batch_interval_ms = 10000

        is_exactly_once = "true"

        xa_data_source_class_name = "com.mysql.cj.jdbc.MysqlXADataSource"
        max_commit_attempts = 10
        transaction_timeout_sec = 1000
         }
} 

example postgres config:

sink {
    jdbc {
        url = "jdbc:postgresql://localhost:5432/test"
        driver = "org.postgresql.Driver"
        connection_check_timeout_sec = 10
        max_retries = 0
        user = "postgres"
        password = "123456"
        query = "insert into test_table(name,age) values(?,?)"
        parallelism = "2"

        batch_size = 10
        batch_interval_ms = 10000

        #Postgres needs to set this parameter ： ALTER SYSTEM set max_prepared_transactions to 10;
        is_exactly_once = "true"

        xa_data_source_class_name = "org.postgresql.xa.PGXADataSource"
        max_commit_attempts = 10
        transaction_timeout_sec = 1000
    }
}```