* Initial restructuring of the Globebrowsing branch
* Update Ghoul repository
Fix include guards
* More cleanup
* Split texttileprovider subclasses into separate files
* Move TileProviders into namespace
* Convert static class methods into free functions
* Splitting tile subclasses into their own files
Remove `using namespace` from header file
* Split TileDataSet subclass into separate file
Update SGCT reference
* Move shader preprocessing data into internal class
* More Globebrowsing cleanup
* More cleanup
Remove unused Convexhull class
Reduce SizeReference font size - TextureAtlas threw InvalidRegionException
Use Mars and Earth Barycenter and not center of mass
Use name Mars instead of LodMars, same for Earth
Move init of font manager to be done prior to scene init
Debug log what modules are added
Debug log when creating SceneGraphNode from dictionary
