Adding in GPIOController + PinMapper. Updated target framework on CCTray, CCTrayLib + UnitTests to 4.0
Sorting out some issues in the GPIOController, and hooking it into the MainFormConroller
Adding in CCTrayPi.csproj, a simple project, designed to work with a pre-configured cctray settings file, as couldn't get the GUI working on Mono yet. But the GPIO pins are working