Cesium Toggle Buttons for Raster and Vector Data

@edallsystems

I found a few community forum threads that can help you get started creating buttons.

If you are looking to add a button to the top-right corner of the toolbar, check out the following thread:

Ultimately, adding a toggle button to the viewer is more of a general HTML/CSS issue than a CesiumJS issue. The following threads provide great high-level information.

Let me know if you have any other questions or concerns!

-Sam