Spatially chunked and sharding compatible annotation writer #672

Job	Run time
client (20.x, ubuntu-latest)	1m 36s
client (20.x, windows-latest)	2m 19s
client (20.x, macos-latest)	1m 24s
python-tests (3.9, 20.x, ubuntu-latest)	1m 9s
ngauth (1.19, ubuntu-latest)	30s
python-tests (3.9, 20.x, windows-latest)	59s
python-tests (3.9, 20.x, macos-latest)	1m 11s
python-tests (3.10, 20.x, ubuntu-latest)	56s
python-tests (3.10, 20.x, windows-latest)	58s
python-tests (3.10, 20.x, macos-latest)	1m 5s
python-tests (3.11, 20.x, ubuntu-latest)	1m 1s
python-tests (3.11, 20.x, windows-latest)	59s
python-tests (3.11, 20.x, macos-latest)	1m 10s
python-build-package (ubuntu-latest, *, linux, 20.x)	3m 28s
python-build-package (windows-latest, *, windows, 20.x)	7m 13s
python-build-package (macos-latest, *_x86_64, macos_x86_64, 20.x)	9m 24s
wasm (ubuntu-latest)	59s
python-build-package (macos-latest, *_arm64, macos_arm64, 20.x)	3m 55s
python-publish-package	0s
	40m 16s

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