Create tum13_measuring_device

    it starts up and the screen turns from black to white
    if you have pressed the screen, the calibration process starts
    it searches for networks and displays the total number of found networks on its screen
    it displays up the first six WiFi stations that were found
    it tries to connect to the WiFi station you have set
    if a connection was established it shows the Arduino's IP address and the SSID (name) of the WiFi it is connected to
    then it idles until you you press the screen
    after you pressed the screen it humps to the "loop"-section of the code
    it continuously runs and displays:
        the current time
        the temperature
        the measured infrared and broadband light
        the measured values of the photodiodes
        the coordinates of the point you pressed on the screen 
    it builds up a connection to a server, calling a php script, passing on the collected data