[Feature]: Hashing of unets and text encoders

Feature description

In the past, most models were monolithic, but now it's not unusual for larger, but also smaller, models to be shipped as a series of components, and users of the models can change just what they require instead of the whole thing.

It would be very useful for SD.Next to hash also individual components like unets or text encoders, and offer said hash where required (infotext, json files for generation, API).

My use-case for this feature is to use the hashes to load model-specific generation parameters in a downstream application.

Version Platform Description

No response