major refactor and combination of phACE.phletching and phACE.phood solutions

now using phACE as shared project to contain ContentManager.cs and FakeProperty.cs, in addition to required libraries

base functionality of both plugins is 'done', with some wip content sql included

phACE.ph is intended to be used as a project template for further phACE mod dev. phACE.ph/Patch_.cs is effectively a feature template, but you'll need to enable the new patch category in Mod.cs.

ContentManager.cs content loading is currently done on per-mod basis. maybe refactor into per-feature basis to more cleanly turn features on/off?