Desired for eventual template

[vsoch]

We will eventually be putting this into a template for others to make plugins, and desired features include the following:

• dummy hello world executor plugin (this is the base requirement, of course!)
• example testing setup
• documentation template to render on GitHub pages, with instructions for where to link from Snakemake

Feel free to add to this list! We can transfer over to a template repository if/when needed.

[johanneskoester]

Templating is now handled via a poetry plugin: https://github.com/snakemake/poetry-snakemake-plugin
Documentation scaffold is still missing for that template.