Deprecate kaleido #624

Job	Run time
Clippy	1m 27s
Rustfmt	15s
Test Static Export with Chrome (Windows)	4m 42s
semver	54s
Build Wasm Examples (callback-example)	1m 0s
Build Wasm Examples (basic)	59s
Code Coverage	18s
Build Book	3m 11s
Tests (macos-latest)	4m 12s
Build Examples (3d_charts)	33s
Build Examples (custom_controls)	38s
Tests (ubuntu-latest)	2m 53s
Build Examples (basic_charts)	34s
Build Examples (customization)	32s
Build Examples (financial_charts)	35s
Build Examples (shapes)	36s
Build Examples (ndarray)	35s
Build Examples (kaleido)	1m 40s
Build Examples (static_export)	1m 31s
Build Examples (images)	47s
Build Examples (subplots)	33s
Build Examples (maps)	44s
Build Examples (scientific_charts)	32s
Build Examples (themes)	36s
	30m 17s

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