Moved spi code to drivers

sbs.conf

src/entrypoints/dma-lowlevel-test.cpp

src/shared/BusTemplate.h

src/shared/boards/AnakinBoard.h

src/shared/drivers/spi/SensorSpi.cpp

src/shared/drivers/spi/SensorSpi.h

src/shared/sensors/Sensor.h

src/shared/sensors/SensorSampling.h