Add Dockerfile template

[GeoDerp]

Stable Diffusion NVIDIA Dockerfile template.

This is far from perfect. However, this may be a good start into developing a Docker sandbox for Stability-AI stable diffusion. Texted on windows, through WSL

Known Issues:

• [x] Gradio scripts generate UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte error (need to work out how to pass arguments in correctly via python cli)
  • [ ] add option to run Gradio scripts without WebUI
• [ ] text-to-image script takes longer then expected to generate an image?
• [ ] not all arguments, scripts, are supported as docker environment variables
• [ ] lack of a proper ReadMe

[GeoDerp]

Commits:

• cc87568
• 6eb5d40

Added negative prompt support based on Wiki: https://github.com/AUTOMATIC1111/stable-diffusion-webui/wiki/Negative-prompt from @AUTOMATIC1111