Created Issue: Bess_nam should be bess_nam [25288]

The BesselNambibia is defined on line 56 of the spheroid class as:

proj4Names.put(Proj4Ellipsoid.BesselNamibia, "Bess_nam");

Which is capitalized and so inconsistent with its use in

DotSpatial.Projections.GeographicCategories.Africa line 181:

Schwarzeck = ProjectionInfo.FromProj4String("+proj=longlat +ellps=bess_nam +no_defs ");

We should probably change the first to lower case as most of the rest of the proj4 defs seem to be lower case.