braindump, intended to start discussion. nothing here is prescriptive.

At any time, a user should be able to install a plugin.

Current exposed command on editions/core:

• https://github.com/pattern-lab/patternlab-node/blob/dev/core/lib/patternlab.js#L534-L536
• https://github.com/pattern-lab/edition-node-gulp/blob/master/gulpfile.js#L129-L132

Plugin installation is a bit one-two stepped right now, with users needing to npm install first and then either call the above or even npm run postinstall, so it'd be nice if we could get all that into one method.

patternlab plugin --install --plugin-node-tab

This could reach out to npm if plugin-node-tab is not found already locally, and do everything for the user.

Future commands to enable/disable would be nice too, as mentioned here: https://github.com/pattern-lab/plugin-node-tab#enabling--disabling-the-plugin