Simply orchestation configuration

[tristaZero]

Feature Request

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Delete type configuration for orchestration, and distinguish sharding or ms through sharding rule and master-slave rule. Therefore, user will not need to care about type.

• Check type configuration for sharding proxy.
• Check type configuration for sharding jdbc.
• Consider remove type configuration for orchestration.
• Check configuration domain modules.
• Make proxy's configuration in registry consistent with jdbc's.