Add new configuration offset.partition.name which will be used instead of the default naming method if defined.
In such a case when the operations team wants a fresh start they just have to restart the connector with a new offset.partition.name configuration.

-Was: Add ignore previous offsets configuration

Add a new configuration to ignore any saved offsets.

This would be useful during reconfiguration of the Source connector, so that a fresh start can be mandated by the operations team.-