[Feature][connector-v2]Support opengauss jdbc connnector using opengauss driver.

[luckyLJY]

Use opengauss driver to implement opengauss jdbc sink and source

[dailai]

Good job. I often encounter authentication issues when using jdbc-pg to connect to opengauss. When the password_encryption_type=1 of the Opengauss database is used to encrypt the password in the sha256 mode, which is compatible with the MD5 authentication mode of the postgres client， but when password_encryption_type=2 means that the password is encrypted using sha256, which is not compatible with the postgres driver . The postgres driver gives an error,

[dailai]

This implementation code is almost identical to jdbc-postgresql, so I suggest you just rely on jdbc-postgresql's implementation and override only the implementation of specific methods, such as those involving jdbc-url and the drivers in the pom.

[luckyLJY]

This implementation code is almost identical to jdbc-postgresql, so I suggest you just rely on jdbc-postgresql's implementation and override only the implementation of specific methods, such as those involving jdbc-url and the drivers in the pom.

Make changes to the code as suggested.

[dailai]

LGTM if ci passed

[Hisoka-X]

Thanks @luckyLJY !

[Hisoka-X]

@hawk9821 would you mind take a look again?

[hawk9821]

LGTM . thanks @luckyLJY