Add support for Installomator

My IT is asking that we only install apps (on mac) that can be updated using an Installomator script, using this tool: https://github.com/Installomator/Installomator

This would be really helpful, as I may have to move to a web only option (which is definitely less convenient and with fewer features). Right now I can turn on admin access temporarily to install the update, but that is going away soon. Thanks!