Spatially chunked and sharding compatible annotation writer #664

Job	Run time
ngauth (1.19, ubuntu-latest)	31s
python-build-package (ubuntu-latest, *, linux, 20.x)	1m 47s
client (20.x, ubuntu-latest)	1m 43s
python-tests (3.9, 20.x, ubuntu-latest)	48s
python-build-package (windows-latest, *, windows, 20.x)	1m 57s
client (20.x, windows-latest)	2m 9s
wasm (ubuntu-latest)	1m 2s
python-tests (3.9, 20.x, windows-latest)	49s
python-build-package (macos-latest, *_x86_64, macos_x86_64, 20.x)	1m 56s
client (20.x, macos-latest)	2m 17s
python-tests (3.9, 20.x, macos-latest)	1m 2s
python-build-package (macos-latest, *_arm64, macos_arm64, 20.x)	1m 56s
python-tests (3.10, 20.x, ubuntu-latest)	58s
python-tests (3.10, 20.x, windows-latest)	51s
python-tests (3.10, 20.x, macos-latest)	47s
python-tests (3.11, 20.x, ubuntu-latest)	48s
python-tests (3.11, 20.x, windows-latest)	48s
python-tests (3.11, 20.x, macos-latest)	1m 2s
python-publish-package	0s
	23m 11s

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