- feat: added field_mapping options to netCDF4 and HDF5 reads (https://github.com/tsutterley/geoid-toolkit/pull/18)
- docs: slimmer build to prevent rtd memory overutilization (https://github.com/tsutterley/geoid-toolkit/pull/19, https://github.com/tsutterley/geoid-toolkit/pull/24)
- docs: updated structure of documentation (https://github.com/tsutterley/geoid-toolkit/pull/20)
- feat: added datetime parser for ascii time columns (https://github.com/tsutterley/geoid-toolkit/pull/21)
- refactor: single implicit import of geoid toolkit (https://github.com/tsutterley/geoid-toolkit/pull/23)
- feat: output average Earth's density in ref_ellipsoid (https://github.com/tsutterley/geoid-toolkit/pull/25)