Handle Vs30 Map Attribute
Currently site class vs30 map is incorrect.
Need to handle the new attribute that has the correct mapping.
Require https://code.usgs.gov/ghsc/nshmp/nshmp-netcdf-conversion/-/issues/23
Currently site class vs30 map is incorrect.
Need to handle the new attribute that has the correct mapping.
Require https://code.usgs.gov/ghsc/nshmp/nshmp-netcdf-conversion/-/issues/23