Corridor rounded corners

Rounded corners are cropped based on angle. This bug is the most obvoius when line is at 45 degrees to meridian

**Sandcastle example**:
https://sandcastle.cesium.com/index.html?src=Corridor.html&label=Geometries
Set position for red corridor to [-100.0, 40.0, -105.0, 35.0]

**Not working Browsers**:
Chrome 79
Firefox 72
Working Browsers:
IE 11

**Operating System**:
Windows 10

Start with the Sandcastle Corridor example and reproduce the issue using the red corridor positions [-100.0, 40.0, -105.0, 35.0] in Chrome 79 and Firefox 72. Compare the rounded-corner rendering with IE 11; done means the corners are no longer cropped for the 45-degree case in the affected browsers.

Written by the indexing model from the issue text.