Dev box cory, work on Shoaler pillars, project for Principal Dates, more

* Add 'weboffice' user-group with 'weboffice' user (and hipikat)
* Set up 'cory' as a new generic dev box to do Principal Dates on
* Add git-server and homeboy formulas to emperor's saltlick config
* Add zangband to emperor
* Work on what a Shoaler pillar configuration should look like
* Add project config for Principal Dates
* Move secrets (back) to a modularised pillar (folder)