Updated the example to use SVG content and Qt Quick controls.

Using sensors module and svg content in a Qt Quick app has been
tricky so far as the C++ plug-in dependencies are not detected
automatically by creator. This change is intended to make the app
suitable for a tutorial explaining how to create a Qt Quick app
for Android.

Change-Id: I05b7413b1224e009ae739cf7a16181519cab7619
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>