User Request: Support devalue or other alternate serialization format

[aboodman]

A user suggested switching or having the option to use something like https://discord.com/channels/830183651022471199/830183651022471202/1050212093539917884.

The motivation is to be able to use dates, cycles, etc.

This is interesting because it is a minor change from what we do now. We could continue to use IDB's built-in serialization.

However, we'd not want to require servers to implement this uncommon format so it'd have to be something users supply.