Visual Logging, Tweaks
#ADD: Added Visual Logging functionality. Access it using VisualLog.Default and VisualLog.Get("...").
#ADD: Added IDrawDevice.IsPicking proprety, which can be used to allow certain Components to render differently in picking mode.
#CHANGE: Moved OggVorbis specific classes from Duality.OggVorbis to Duality.Resources.
#CHANGE: Clarified docs on Canvas.State transformation properties.
#CHANGE: EditorHintFlags are now allowed on classes as well.
#CHANGE: Components with EditorHintFlags.Invisible will not show up in the Create Component menu of the Scene View.
#FIX: Fixed Canvas.DrawText not properly dealing with transform state and pixel-grid aligned text.
#FIX: Fixed DrawDevice erroneous culling based on reference Z values in orthographic / screen space mode.