Domutils

Added
- new function "radar_tools.read_h5_vol" for reading volume scans in ODIM H5 format
- new function "radar_tools.model_43" for dealing with polar radar geometry and 4/3 earth approximation
- new function "radar_tools.median_filter.remap_data" allowing fast applications of any kind of
boxcar-type operations
- new function "radar_tools.rotation_matrix_components" which allows fast
computation of lat/lons using simple numpy operations
- New example in gallery that uses all new elements above
Changed
- "radar_tools.lat_lon_range_az" is much faster for input arrays and now broadcasts inputs together

Added
- packaging added to conda dependencies

Fixed
- in get_accumulation coef_a and coef_b are now passed to get_instantaneous as they should
Fixed
- use new syntax for linewidth with cartopy 0.18

Added
- figures added to test data for docs to render well -- no changes to code

Added
- radar_tools now supporting stageIV accumulations
- new scripts for easier update of the test data on zenodo

Changed
- Option to change cartopy_dir in make_radar_fst.py