DF-2960 added materials
Merge branch 'feature-integration-new-materials' of https://github.com/dava/dava.framework into feature-integration-new-materials
[DF-2933] always set texture (pink or actual) during old->new conversion
[DF-2945] ignore static lights
Merge branch 'origin/feature-integration-new-materials'
[DF-2930] Hightlight materials for selection
Merge branch 'feature-integration-new-materials' of https://github.com/dava/dava.framework into feature-integration-new-materials
[DF-2947] skybox creation restored
Merge branch 'origin/feature-integration-new-materials'
[DF-2842] Added drag&drop support for material tree.
Merge branch 'feature-integration-new-materials' of https://github.com/dava/dava.framework into feature-integration-new-materials
[DF-185] In-scene object selection now always works
[DF-185] Fixed memory leak
[DF-2973] Fixed switching parents of materials
Merge branch 'feature-integration-new-materials' of https://github.com/dava/dava.framework into feature-integration-new-materials
[DF-2955] fixes for material cloning
Merge branch 'origin/feature-integration-new-materials'
[DF-2955] don't add materials to material system during load to avoid duplicate materials
[DF-2955] save/load for empty textures
[DF-2911] Static Occlusion Finalization