Scaling quick setting
Adds a quick setting plugin that changes screen scaling. Current behavior is that it starts at 200% and when pressed cycles from 100%, 125%, 150%, 175%, and 200%. I want to rework it into an expanding/drop down list that lets you just pick the desired scaling. A preferences setting to configure the minimum and maximum scaling factors displayed may also be a good improvement.
Currently just uses wlr-randr to set the scale factor. This could probably be improved by I don't know how.