Duplicate dams

[dwief-usgs]

Using this issue to document a duplicate dam and to open a dialog on ways to address this moving forward.

Item 1078803 appears to represent the same dam as Item 1087478.

With NID being an aggregation of information from the states there are likely similar cases where 2 bordering states document the same dam.

[dwief-usgs]

Working on Python methods that will help flag potential duplicates. Perhaps that logic can be adopted in future versions of the build code. Will also want to think through how to handle these cases where a registered feature needs to be deprecated and or a relationship to another feature needs to be prioritized