ENH: add WN product size (1200,1000) to radolan grid (#449)

* ENH: add WN product size (1200,1000) to radolan grid, add test for correct reference point (lower left)
* STY: black style

FIX: make `georeference_dataset` work with ND datasets (#446)

* FIX: make `georeference_dataset` work with multi-dimensional elevation data (eg. with time, azimuth - dims)

FIX: adapt to new black style checking (#447)

FIX: fix srtm downloads windows path issues and region selection (#445)

* FIX: fix srtm downloads windows path issues and region selection
* FIX: unskip windows tests
* FIX: adapt raster extents and ranges to minimize download sizes

FIX: add switch to keep elevation data unaltered (DWD terrain following scan) (#443)

FIX: update `vis.plot_scan_strategy()` (#442)

Co-authored-by: Jorma Rahu <jorahu@users.noreply.github.com>

ENH: specify keys (sweep_groups) which should be saved using to_netcdf (#440)

FIX: pin isort

FIX: always translate ODIM attributes to CF attributes

FIX: use travis-ci.com instead of .org

MNT: enhance ci workflow (#436)

* MNT: add flake8 linter to azure ci
* MNT: update README.md
* MNT: upload coverage on azure ci
* MNT: upload coverage on azure ci for notebook tests

FIX: rework ODIM RHI elevation angle retrieval (#435)

MNT: use pytest for testing (#434)

* MNT: use pytest for testing, implement "@require_data" to be able to run tests in case of missing wradlib-data
* MNT: run tests sequentially

MNT: update CI and templates (#432)

* MNT: add azure CI tests
* MNT: code formatting according to black/isort/flake8, add setup.cfg
* MNT: add show_versions
* MNT: use new semver parse
* MNT: add github templates

MNT: Rel 1.7.0

DOC: docstring fixes (#431)

ENH: add rainrate decoder to iris reader (#428)

* adding rainrate decoder
* MIN: remove decode_rainrate2 (rainrate2 is decoded via decode_array), add test for decoding rainrate2
Co-authored-by: Kai Muehlbauer <kai.muehlbauer@uni-bonn.de>

ENH: implement re-use of interpolator for RectBin (#430)

* implement re-use of interpolator for RectBin
* restrict scipy version >= 1.4 for binned_statistics improvement

FIX: ipol classes / raster indexing (#429)

MIN: update projection (#427)

* MIN: remove transform functions, which can simply be replaced by `reproject`, update get_earth_projection to work with model-strings, simplify get_radar_projection
* TST: fix test, use pytest, adapt black-codestyle