Introduction of `PatchInputType<T>`

[michaelstaib]

[wietlol]

Could you add a description of how this will work, is implemented, can be expanded upon beyond built-in integration in case we use a different data store, etc?
This is a feature we currently have implemented ourselves, but could benefit from if it was in the Hot Chocolate libraries.

[michaelstaib]

We have moved it and will not work on this for V14 .... we will expand on details once its on the backlog.