text: Title: Move UFOGen Pipeline and Scheduler to Research Projects
  Body: **Is your feature request related to a problem? Please describe.**
  After reviewing #6133 and a bit of searching has led me to the implementation of the UFOGen paper by the co-authors. By reading the repo ReadME and it seems there is no model checkpoints provided by the authors, only the training code. Does it make sense to move the pipeline to example/research projects?
  
  Repo link:  https://github.com/xuyanwu/SIDDMs-UFOGen
  
  Please let me know.
  
  cc: @yiyixuxu , @sayakpaul 