[Feature Request] Add default Clip Skip in the Default Checkpoint Model Template

[Iory1998]

Some checkpoints like PonyDiffusion and RevAnimation run best with Clip Skip 2 (CS). As it currently stands, user have to manually enter the correct Clip Skip value for each model.
This is cumbersome and requires the user to remember the preferred Clip Skip value for each model. Also, when using X/Y/Z plot to test models, models cannot be loaded with their preferred CK values.

Attached is a preview of how to implement it.