improves macOS ARM platform tags

fixes setup.py for macOS

build system preparation for release 0.11.0

_soundfile_data now contains up-to-date binaries for Windows 32/64 and macOS intel/arm.
build scripts have been amended to use the new binaries

changelog is not yet updated
windows binaries use different C runtime than python, do not support file descriptors

fixes docs

new release with latest improvements

increment version number

increment version number

increment version number

Release 0.9.0

update for borked pypi files.

Also now installable as `pip install soundfile`