Feature request: support for installing poetry plugins

[jfly]

It would be nice to be able to ensure poetry gets installed with some plugins.

I suppose it would require doing something quite clever with the .tool-versions format. A couple ideas:

1. Add a special environment variable that contains a (comma separated?) list of plugins to install.

• This feels unfortunate because it wouldn't give me any mechanism for using poetry 1.2.3 both with a given plugin and without a given plugin.

2. Do something clever with asdf plugin naming. For example, folks could run asdf plugin-add poetry-with-FOO-with-BAR https://github.com/asdf-community/asdf-poetry.git and under the hood, asdf-plugin would parse the plugin name and install the given plugins (in this case, "FOO" and "BAR") when it installs a particular version of poetry.
   • This is quite a hack, but I think it would work. asdf doesn't seem to pass the plugin name down when invoking install, but we could deduce it from the location of the install script.

[jdx]

Configuration is supported in mise.toml, that'd likely be the preferred strategy here. This works today, but the poetry plugin would need to look for the configuration and install the plugins

[jfly]

@jdx, for folks like me with no knowledge of mise, could you elaborate a little more? The 2 suggestions I included would work with pure asdf, would yours?