Datafield with the following elements: altitude (meters) with a gradient percentage, total ascent (meters), current speed (Km/h), elapsed time, elapsed distance (Km), current heart rate, curent cadence, time and battery status.
Added a background graphical view for:
* Altitude: graphic view for the last 18 minutes (one sample every 10 seconds)
* Heart Rate: graphical view for the last 9 minutes (one sample every 5 seconds)
* Cadence: graphical view for the last 9 minutes (one sample every 5 seconds)
