Fix rotated KML ground overlays.
Fix rotated KML ground overlays.

soceur/cesium,josh-bernstein/cesium,geoscan/cesium,geoscan/cesium,jasonbeverage/cesium,emackey/cesium,kaktus40/cesium,likangning93/cesium,likangning93/cesium,CesiumGS/cesium,wallw-bits/cesium,emackey/cesium,YonatanKra/cesium,wallw-bits/cesium,likangning93/cesium,CesiumGS/cesium,wallw-bits/cesium,hodbauer/cesium,NaderCHASER/cesium,YonatanKra/cesium,AnalyticalGraphicsInc/cesium,hodbauer/cesium,oterral/cesium,progsung/cesium,NaderCHASER/cesium,likangning93/cesium,ggetz/cesium,hodbauer/cesium,ggetz/cesium,emackey/cesium,jasonbeverage/cesium,YonatanKra/cesium,soceur/cesium,kaktus40/cesium,emackey/cesium,josh-bernstein/cesium,progsung/cesium,wallw-bits/cesium,oterral/cesium,likangning93/cesium,ggetz/cesium,soceur/cesium,AnalyticalGraphicsInc/cesium,YonatanKra/cesium,CesiumGS/cesium,ggetz/cesium,oterral/cesium,CesiumGS/cesium,CesiumGS/cesium,NaderCHASER/cesium