adding more features
adding blink.c, imeplented output function for testing parallel port bits
adding missing RPI.h, implementing select_port, selects the port on the parallel port multiplicator
adding makefile, modified rpi.h added dump_status, implemented i2c_scan, scanning the bus for working devices, also fixed the i2c_write, now it properly communicating with the devices, also fixed the memory addresses for RPI rev 2(bsc1 address instead of bsc0)
Update RPI.c
Adding kernel driver for i2c
Patch i2c with repeated start