Experimental s3 and parquet support #795

Job	Run time
check-rust	6m 57s
build-vegafusion-wasm	7m 7s
build-vegafusion-python-embed-linux-arm64	19m 55s
test-rust (ubuntu-20.04)	38m 21s
test-rust (windows-2022)	38m 15s
build-vegafusion-jupyter-packages	9m 3s
test-rust (macos-11)	40m 8s
build-vegafusion-packages	2m 21s
build-vegafusion-python-embed-osx-64	19m 48s
build-vegafusion-python-embed-osx-arm64	19m 43s
build-vegafusion-python-embed-win-64	33m 56s
build-vegafusion-server-linux-64	9m 53s
build-vegafusion-server-linux-arm64	18m 11s
build-vegafusion-server-win-64	35m 33s
build-vegafusion-python-embed-linux-64	20m 49s
build-vegafusion-server-osx-64	22m 9s
build-vegafusion-server-osx-arm64	22m 42s
test-vegafusion-python-osx-64	11m 2s
test-vegafusion-jupyter-linux-64	28m 44s
test-vegafusion-python-linux-64	8m 59s
test-vegafusion-python-win-64	9m 13s
	7h 2m 49s

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