Optimize XY grid to run slower axes fewer times

Add swap axes button for XY Grid

Make XY grid cancellation much faster

change sd_vae_as_default to True by default as it's a more sensible setting

Escape special symbols in paths

make inpaint go to the right place for users who don't have it in config string

allow reordering of inpaint masking controls (like the other sections can be reordered)

add fields to settings file

Fix tensorboard-hypernetwork integration correctly

Fix unexpected behavior when show_progress_every_n_steps is set to -1

increase block size

Fix Approx NN not working on torch devices other than CUDA

big rework of progressbar/preview system to allow multiple users to prompts at the same time and do not get previews of each other