Feature request about ConfigService

[caqhy]

About ConfigService

1. Support getting configuration according to the dataId prefix range, and return dataId, group, content.
2. Support publish ephemeral configuration which is deleted when the session is disconnected.
3. Support range watch, the callback parameter contains the configuration that matches the dataId prefix.
4. Support the listener callback parameter contains more information, such as the value before the configuration change, the value after the configuration change, and the configuration change type.
5. Support deleting configurations according to the dataId prefix range.
6. Support distributed locks. The data of the nacos is persistent in the database. It should be possible to implement distributed locks based on the database.

[stale]

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