Update CHANGES.md
Update CHANGES.md

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Co-Authored-By: Sean Lilley <c2796470ac2eef955bfd5ea34e81a156bd0b8d73@gmail.com>
CesiumGS/cesium,likangning93/cesium,progsung/cesium,likangning93/cesium,likangning93/cesium,AnalyticalGraphicsInc/cesium,YonatanKra/cesium,AnalyticalGraphicsInc/cesium,CesiumGS/cesium,YonatanKra/cesium,progsung/cesium,CesiumGS/cesium,CesiumGS/cesium,YonatanKra/cesium,likangning93/cesium,YonatanKra/cesium,likangning93/cesium,CesiumGS/cesium