fix show bounding volume and show only selected for models
move and add class name
move inspector
Merge branch 'master' into movePerformanceDisplay
fix specs
Merge branch 'master' into cesiumInspector
tweak model show bounding sphere
Merge pull request #2157 from AnalyticalGraphicsInc/movePerformanceDisplay

Change default FPS and Inspector position
Merge pull request #2156 from AnalyticalGraphicsInc/cesiumInspector

Cesium inspector support for models