Integrate with standard Deforum

[rewbs]

The A1111 Deforum extension integration is working well, but many users prefer plain old Deforum :)

There's no reason we can't do a Parseq integration there too.

[rewbs]

The only things that make this a bit tricky are:

• Prompts because Deforum doesn't support composable diffusion. If we put this aside we could add support on the basis that prompts wouldn't necessarily be compatible (i.e. prompts that work in a1111 might not work in plain deforum).
• Fractional seeds. Deforum does not currently support subseeds / SLERPing between seeds as far as I can tell. We would either need to add that or round the seed and list the gap as a caveat.

[boxabirds]

I'm particularly interested in this having done some work on "vanilla" deforum recently. Seeing your tutorials it definitely seems like a111-deforum has moved on substantially from the original one in many respects. Also stuff like FILM integration, upscaling, etc etc. The list goes on.

I am interested though in the broader goal of how parseq could be more standalone. The a1111 UI is a geek heaven but impenetrable to "creative types".