0.5.0

• Add width, height and depth to CSGBox.
• Add a grey CSG Box floor in the example.
• Add radius, height, sides and cone flag to CSGCylinder.
• Add an orange cone in the example.
• Add radius, radial_segments, rings and smooth_faces to CSGSphere.
• Add smooth_faces to CSGCylinder.
• Add open and run to Project.
• Add ext and sub resources automatically.
• Add load steps for a proper loading bars.