Currently subsurfaceTheme resides in main.qml, where it does not naturally
belong.
Add C++ class that will replace subsurfaceTheme in main.qml in a 1-1 manner.
This opens future posibilities
- on top of the 3 themes, allow users to select colors/fonts
- add stylesheets to Template* components
- make day/night shift automatically.
Signed-off-by: jan Iversen <jan@casacondor.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
