Implementing Iterative Trimming GP

# 🚀 Feature Request

I have implemented the iterative trimming GP algorithm from https://arxiv.org/pdf/2011.11057 using GPyTorch. I'm sure other users would find this helpful. How can I integrate this into GPyTorch? Is it better to add this as an additional method or simply in an example notebook?


**Are you willing to open a pull request?** (We LOVE contributions!!!)

YES!





