This reverts commit 51a960df1fdd265e7747e19b50e25f359447587c.

Extras have none of the vars used in dir names, so they cant be saved into dirs.
+grid code cleanup

* numpy deprecation warning fix. Alternately, you could also specify float

* needs a piexif module install
* dumps the info in an Exif "UserComment"
* update to webui.bat

Add minimum requirements for skimage version

Complete cross attention update

In my defense I was doing this on my phone.

Related to https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/393

moved stable diffusion dependencies into requirements.txt
added checkout with specific commit hashes to all external repos

 Embeddings directory can't be found if running webui.py from another directory (+potential fix) #374