bugfix: model name was added together with directory name to infotext and to [model_name] filename pattern

bugfix: model name was added together with directory name to infotext and to [model_name] filename pattern

revert SD2.1 back to use the original repo
add SDXL's force_zero_embeddings to negative prompt

Prequisite to fixing Outpainting MK2 mask blur bug.

Update shared.py

fix for conds of second hires fox pass being calculated using first pass's networks, and add an option to revert to old behavior

Fix get_conds_with_caching()

split some code from ui.py into ui_settings.py ui_gradio_edxtensions.py
add before_process callback for scripts
add ability for alwayson scripts to specify section and let user reorder those sections