Added Test: Simulating Lost Context
Added Test: Simulating Lost Context

OpenWebGlobe/WebViewer,robhawkes/WebViewer,Hvitnov/WebViewer,robhawkes/WebViewer,OpenWebGlobe/WebViewer,Hvitnov/WebViewer,Hvitnov/WebViewer,robhawkes/WebViewer,Hvitnov/WebViewer,OpenWebGlobe/WebViewer,OpenWebGlobe/WebViewer,robhawkes/WebViewer