Fixes to bring ESRI 3D viewer in line with leaflet

[qqnluaq]

The client code has evolved away from the ESRI 3D viewer. Work is needed fix 3D support.

[qqnluaq]

At the moment, there is a subset of the tools that work correctly with the esri-3d viewer. They are:

• about
• baseMaps
• dropdown
• layers
• menu
• pan
• zoom

The other tools that work with the leaflet viewer require a varying amount of effort to bring to esri-3d. These are the tools that need work (with ticket):

• 177 coordinate

• 178 directions

• 179 identify, query, select

• 180 location

• 181 markup

• 182 measure

• 183 minimap

• 184 scale

• 185 search

[cpspicer]

First set for MVP: 178, 179, 182, 185