Branding: Update NLR branding

[simmsa]

Update documentation to use National Laboratory of the Rockies per: https://www.energy.gov/eere/articles/energy-department-renames-nrel-national-lab-rockies

At this point in time https://nrel.gov is still active and https://nlr.gov does not work, so we are keeping the nrel.gov links the same.

Also the HSDS api endpoints:

/nrel/US_wave/virtual_buoy/{region}/{region}_virtual_buoy_{year}.h5
/nrel/wtk/{region.lower()}/{region}_*.h5
/nlr/wtk/{region.lower()}-5min/{region}_*.h5

In

mhkit/wave/io/hindcast/hindcast.py
mhkit/wave/io/hindcast/wind_toolkit.py

Are not updated yet, but may change in the future.