Ev3Simu Initial Test Commit

Test of connection with GitHub
Empty projects for GUI and Test
Hardware Abstraction Layer for Lcd and Buttons

HardwareIF for Lcd and Buttons added, conditional compiler symbol
Ev3Simu switches Simu=Debug and Hardware=Release. Lcd and Buttons
adapted to use HAL files.
Initial versions of GUI and TestProg

SimuGUI (WPF application) and TestProg (very rudimentary) compiled in
Debug only.
Demo screenshot added