Add FUDS and other "sites" that the CEJST lists as map layers

[KameronKerger]

Is your feature request related to a problem? Please describe. Now that we are saying "yes" there is a FUD site in a tract, people will want to know where it is. Having it available as a data layer would enable this use case.

Describe the solution you'd like Have a FUD location and label (this applies to the other burden "sites" also) available to view on / in the CEJST

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.

[vim-usds]

@KameronKerger - I'm beginning to understand what this whole "layers" business is about now. Looking forward to getting into this when the time is right :)