Get a list of sites using a specific plugin

[gtenaschuk]

Maybe we might need a new terminus plugin but i'm seeing that, sometimes, we need to know where we have installed a plugin to check things. Or if there is a security issue we could know in which sites we have it. An array of plugin would be ideal if possible We could use this in a new Terminus plugin, together with activate, deactivate, install and delete methods https://developer.wordpress.org/cli/commands/plugin/get/