Add initial Arrow PyCapsule support #980

Job	Run time
build-vegafusion-wasm	7m 16s
check-rust	3m 45s
build-vegafusion-python-linux-64	3m 39s
build-vegafusion-python-linux-arm64	3m 30s
check-vegafusion-python	1m 22s
test-rust (ubuntu-20.04)	14m 58s
test-rust (windows-2022)	38m 45s
test-rust (macos-14)	15m 39s
build-vegafusion-python-osx-arm64	2m 53s
build-vegafusion-python-win-64	25m 42s
build-vegafusion-python-osx-64	5m 33s
build-vegafusion-server-linux-arm64	2m 24s
build-vegafusion-server-osx-64	5m 19s
build-vegafusion-server-linux-64	2m 44s
build-vegafusion-server-osx-arm64	2m 41s
build-vegafusion-server-win-64	6m 24s
test-vegafusion-python-linux-64	30m 33s
test-vegafusion-python-osx-arm64	5m 25s
test-vegafusion-python-win-64	10m 15s
	3h 8m 47s

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