Long video format for LTX-2 using GGUF

Version 2

I added Previews so you can now see the video as it gets generated.

It now uses small models to fit for LOW VRAM pcs.

If you have plenty of VRAM, feel free to go get higher parm gemma + gguf.

If you can't find the node TKVideoInputs you will need to do a search in the Manager for "Handy Nodes" and make sure to install the node that includes "Video User Inputs"/ TKVideoUserInputs

Models are in a Subgraph.