migration for licensed works layer

[AlexZorkin]

No description provided.

[dainetrinidad]

I checked the PR link and I can see the new layer!

A few observations:

• The switch case has gotten really big, we should think about moving that into a separate json file or something for easier maintenance in the future
• The legend icon for Dike/Levee/Berm is not showing up (or it's just plain white -- is that intentional?)
• Are there 5 layers within water_licensed_works?

[AlexZorkin]

Dike/Levee/Berm is a white line so that's why it's not showing. Asked Lindsay and she said leave it because it matches the databc version.
I had to add 5 layers for this layer to have dashed lines. Mapbox for whatever reason doesn't let you create multiple different styled lines within one layer. Really frustrating, the suggested solution was to create a unique layer for each style you need. It's been an outstanding issue for 3+ years: mapbox/mapbox-gl-js#3045