Support for editable installs

[malfario]

Hey David, thank you for sharing Pyflow, very neat tool!

I'm pretty interested in Python project managers implementing PEP 582 and just started exploring your take on it.

Coming from Poetry (and Pipenv before), I'm missing a way in Pyflow to install my project in editable mode (e.g. Poetry does this implicitly on "poetry install" for lib projects, Pipenv lets you do "pipenv install -e .").

I've naively tried "pyflow install -e ." and manually adding something like this to pyproject.toml (ala Pipenv) with no luck:

[tool.pyflow.dependencies]
mypackage = { editable = true, path = "." }

I've browsed the docs and search Github issues but cannot found any reference to this matter.

Is this mechanism intentionally missing (I know there's been some debate elsewhere on whether editable installs are useful or not) or is it planned and not yet implemented ?

Thank you!