Add scaleFactor to provider options
Add scaleFactor to provider options

jasonbeverage/cesium,AnalyticalGraphicsInc/cesium,likangning93/cesium,YonatanKra/cesium,YonatanKra/cesium,jasonbeverage/cesium,likangning93/cesium,likangning93/cesium,progsung/cesium,progsung/cesium,CesiumGS/cesium,CesiumGS/cesium,likangning93/cesium,CesiumGS/cesium,CesiumGS/cesium,CesiumGS/cesium,AnalyticalGraphicsInc/cesium,YonatanKra/cesium,likangning93/cesium,YonatanKra/cesium