Command output plugin

[birdie-github]

Wayfire implements a very small number of plugins and I do understand that there's probably a single developer and not a lot of resources/time/desire/will.

Would be nice to have a "Command Output" plugin which allows to run any shell commands and show their output on the panel.

Check the XFCE project for more info, https://docs.xfce.org/panel-plugins/xfce4-genmon-plugin/start

Commands need to be launched

1. just once on login
2. Periodically once per N seconds (configurable)

Each individual plugin should be clickable, so that I could click it and run some corresponding command of my liking.

This will allow to monitor and implement a ton of various features without coding them.

Thank you.