Idea: Ability to set up seed and UI showing the seed, which was used to create the image

[Petri31713965gpuf]

The seed (integer) which was used to create the image should be visible in the UI.

User should be able to either use random seed (-1) or use an existing (manually set) or old seed.

This would allow consistent set of images e.g. same character in different environments, wearing different clothes and so on.