Dev version of Clock-Fit for Ionic with Calories and Distance

- 3 screens to choose from, Classic, Angel & [new] Horizons

- In app selection of the screen, 12/24hr & Distance units (M or Km)

- Progress bar added to Horizons screen

Revised screen updates to save power and allow the battery to last longer.

v4.3.0 - 30/11/20 - Heart rate switched off when not worn and heart rate read rate reduced slightly to save about 40% power.

v4.5.0 - 05/10/21 - Switch off Heart Rate when screen is off to save power