Add v2 predector notebook

[hotchpotch]

Hi, Great project with a great approach!

To make it easy to run, I added a notebook that also works with colab. How do you like it?

• example: https://colab.research.google.com/drive/1C5P8gJlg8xFYnz0G3o5X2ahLDO8uJyf4?usp=sharing

[grexzen]

This is amazing! Thanks so much.

Used your base code to create a whole other way to gen images, then score them, then classify them, making incredible art in bulk.