Added agilefox bsp and projects, based on openstm32 platform port.

MCU
No external GPIOs available on the agilefox for now
LEDs
UART
Timers
Radio TX/RX
reverted changes in non agilefox related files
Merge pull request #26 from AlaeddineWeslati/develop

Added agilefox bsp and projects, based on openstm32 platform port.