Repurpose ESPHome devices in Home Assistant

**Describe the problem you have/What new integration you would like**
The ability to repurpose ESPHome devices within Home Assistant so that they retain their data.

**Please describe your use case for this integration and alternatives you've tried:**
I have a few Athom smart plugs that are able to monitor energy consumption. I often repurpose them, especially during summer and winter months for air conditioners and space heaters.

If I upload a new configuration to a smart plug, it gets registered in Home Assistant as a new device under the same integration or name.

In order to get energy reporting working for the new device, I have to remove the integration for the old device, losing historical data, and register the new device.

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It would be helpful if a new integration were created, and the previous integration continued to exist (considered unavailable), retaining historical data.

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**Additional context**
I'm not sure if this is an ESPHome issue or a Home Assistant issue.