test to establish how we can share the project on MBED

Dependencies:   BME280 BMP280 ELEC350-Coursework-2017 TextLCD

Fork of ELEC350-CWTEMPLATE-2017 by University of Plymouth - Stages 1, 2 and 3

ADD SERIAL PROTOCOL

Pull request to add serial_protocol.cpp and serial_protocol.hpp

Fork of coursework to develop serial protocol