Allow user to link to their current location, heading, pitch, roll, and enabled layers via a URL

[ianguerin]

Describe the feature you'd like A clear and concise description of what you want to happen.

• Support loading a position in a Cesium widget view from the URL
• Update the browser window's URL as the user pans around the map
• Support changing a layer's initial visibility based on URL parameters
• Update the browser window's URL as the user shows or hides layers

[mbjones]

Closely related to the following existing issues:

• 1806: Save the current Cesium config as a link for sharing

• 2410: Allow configuration of a camera angle for preset views in the Cesium Viewfinder

[ianguerin]

Yes, #1806 is what I was looking for, and could not find. I'll close this and track with that bug, thanks!