Add whatsnew for next release

Bump version number

Merge pull request #139 from wind-python/features/make_ready_for_release_022

Set release date and add contributor

Add sphinx to dev requirements and change to alphabetical order

Fix sphinx warnings

Fix indentation

Fix typo

Fix typo

Fix indentation

Try fixing indentation warnings in sphinx

Update version number

Fix links to data

Merge pull request #136 from wind-python/features/fix_and_add_automatic_tests

Move extracting curve data from oedb turbine library to own function to allow testing independent from oedb data