DayNight system update

@Changed: Moved all creation under basic scene, through one call on a
new function which is called in InitApp. This will solve settings
changes easier later on.
@Fixed: Null pointer for sun light direction when retrieving from
SkyControl.
@Issue:
1. Moon & sun moving together not separate at day night.
2. Move dome down to horizon.
3. Scene sun light not working.
4. Bloom & Light scattering not working.