 Updates Cesium_Man.glb to face +Z, fixes animation bugs
 Updates Cesium_Man.glb to face +Z, fixes animation bugs

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