Staring commit
Makefile
Spi1 - This class contains all the methods to initialize, read and write the spi bus
Lis302dl - This class contains the methods to sets up the accelerometer and read his data
Utility - This class contains methods to initialize and to use leds
Pedometer - This class contains the logic to understand if a movement is a step or not

Signed-off-by: Omar Scotti <omar.scotti@mail.polimi.it>
Signed-off-by: Diego Rondelli <diego.rondelli@mail.polimi.it>