Command line support (pipx)

[OverkillGuy]

Just discovered your tool, looks amazing!

I would like to use this from command line via pipx, so I can create a few diagrams like PlantUML, but with a dedicated virtualenv for that executable.

I see the scripts/generate.py as a candidate for packaging, which I'd propose to ship as poetry.script section. This means the following would be possible:

pipx install diagrams
diagrams example.py

I don't know about the arguments if any, though.

[OverkillGuy]

As mentioned on PR, the scripts/generate.py seems to not be what I thought, but I still believe an executable would be valuable (for pipx installation giving separation in virtualenv + easy use without clear python project), but might be more of an effort than previously thought.

[mingrammer]

Rel: #6 (comment)