[FR] Script Mode

[BenMac31]

Please add a "dmenu-like" mode for use in scripting that accepts a list of items stdin, the user selects an item, and output the selected item stdout.

Use-Case: Many users are coming from cosmic-epoch not just from other desktop environments & gnosmic but from TWMs. Many people coming from TWMs have an array of scripts that make use of a "dmenu-like" program for selecting an option in them. Providing this mode would allow for users to seamlessly migrate their already existing scripts over without needing to write a complicated plugin.