DF-4250 fixed fonts saving if folder UI/Fonts does not exist, clear fonts on close project
merged development into development
Merge branch 'development' of https://github.com/dava/dava.framework into development
[DF-581] const for static char array.
Merge branch 'development' of https://github.com/dava/dava.framework into development
[DF-185] Changed wrapmode for pink cubemap
[DF-4196] - UIControl retains its position while changing its hierarchy.
Merge branch 'development' of https://github.com/dava/dava.framework into development
[DF-4269] Fixed bug, when add/remove buttons were shown for global material
Merge branch 'development' into development_ground_fog

Conflicts:
	Tools/ResourceEditor/Classes/Qt/MaterialEditor/MaterialEditor.cpp
[DF-185] Fixed camera speed to be applied immediately after it was changed in settings
[DF-4275] Added texture validator for material textures