[EPIC] Add Paimon table support for Gravitino Spark connector

[jerryshao]

Describe the proposal

This issue tracks the work of adding Apache Paimon table support for Gravitino Spark connector, which makes Gravitino Spark connector to operate Paimon tables.

Task list

Subtasks will be listed here.

[caican00]

Hi @jerryshao there is an old issue that has split spark subtasks.

#2404