Spatially chunked and sharding compatible annotation writer #660

Job	Run time
ngauth (1.19, ubuntu-latest)	26s
python-build-package (ubuntu-latest, *, linux, 20.x)	1m 38s
client (20.x, ubuntu-latest)	1m 23s
python-build-package (windows-latest, *, windows, 20.x)	1m 50s
python-tests (3.9, 20.x, ubuntu-latest)	59s
client (20.x, windows-latest)	2m 37s
wasm (ubuntu-latest)	58s
python-build-package (macos-latest, *_x86_64, macos_x86_64, 20.x)	1m 53s
python-tests (3.9, 20.x, windows-latest)	1m 5s
client (20.x, macos-latest)	1m 56s
python-build-package (macos-latest, *_arm64, macos_arm64, 20.x)	1m 56s
python-tests (3.9, 20.x, macos-latest)	1m 14s
python-tests (3.10, 20.x, ubuntu-latest)	1m 8s
python-tests (3.10, 20.x, windows-latest)	1m 4s
python-tests (3.10, 20.x, macos-latest)	1m 12s
python-tests (3.11, 20.x, ubuntu-latest)	1m 4s
python-tests (3.11, 20.x, windows-latest)	1m 4s
python-tests (3.11, 20.x, macos-latest)	1m 17s
python-publish-package	0s
	24m 44s

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