Updated EllipsoidOutlineGeometry.js based on feedback
Updated EllipsoidOutlineGeometry.js based on feedback

* Renamed variables, e.g. azimuthMin to minimumAzimuth.
* Converted input azimuth/elevation from degrees to radians.
CesiumGS/cesium,likangning93/cesium,YonatanKra/cesium,AnalyticalGraphicsInc/cesium,progsung/cesium,likangning93/cesium,CesiumGS/cesium,YonatanKra/cesium,CesiumGS/cesium,YonatanKra/cesium,AnalyticalGraphicsInc/cesium,YonatanKra/cesium,progsung/cesium,CesiumGS/cesium,likangning93/cesium,likangning93/cesium,CesiumGS/cesium,likangning93/cesium