LTX2 New Features

https://github.com/maybleMyers/ltx

these features can be easily added to wangp.

SVI-LTX, long videom generation etc

@deepbeepmeep 

<img width="1920" height="3099" alt="Image" src="https://github.com/user-attachments/assets/d956058e-4fc3-4706-9101-e6037fc075b5" />
