Added defaults for CHIP, Pi A&B Rev 1, Pi A&B Rev2, Pi 2/B+/Zero
Added defaults for CHIP, Pi A&B Rev 1, Pi A&B Rev2, Pi 2/B+/Zero

stephanmantler/SwiftyGPIO,uraimo/SwiftyGPIO,colemancda/SwiftyGPIO,stephanmantler/SwiftyGPIO,uraimo/SwiftyGPIO