Refactor to move ChartState to vegafusion core #994

Job	Run time
check-rust	4m 12s
build-vegafusion-python-linux-64	3m 16s
build-vegafusion-python-linux-arm64	3m 30s
build-vegafusion-python-win-64	7m 49s
build-vegafusion-python-osx-64	4m 58s
build-vegafusion-wasm	3m 41s
check-vegafusion-python	10m 41s
test-rust (ubuntu-20.04)	15m 26s
test-rust (windows-2022)	41m 18s
build-vegafusion-python-osx-arm64	3m 35s
test-rust (macos-14)	15m 56s
build-vegafusion-server-linux-64	2m 58s
build-vegafusion-server-linux-arm64	2m 26s
build-vegafusion-server-osx-64	8m 21s
build-vegafusion-server-osx-arm64	3m 6s
build-vegafusion-server-win-64	5m 36s
test-vegafusion-python-linux-64	32m 1s
test-vegafusion-python-win-64	10m 23s
test-vegafusion-python-osx-arm64	6m 58s
	3h 6m 11s

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