Added compilable mitpi library to transition to (away from bcm2835)
Added compilable mitpi library to transition to (away from bcm2835)

harry159821/printipi,Igor-Rast/printipi,Igor-Rast/printipi,Wallacoloo/printipi,harry159821/printipi,Wallacoloo/printipi,Wallacoloo/printipi,Wallacoloo/printipi,Igor-Rast/printipi,Igor-Rast/printipi,harry159821/printipi,harry159821/printipi