Deprecate kaleido #623

Job	Run time
Rustfmt	16s
Clippy	1m 32s
semver	53s
Tests (macos-latest)	4m 6s
Tests (ubuntu-latest)	2m 50s
Code Coverage	22s
Build Wasm Examples (callback-example)	57s
Build Wasm Examples (basic)	59s
Build Examples (3d_charts)	35s
Build Examples (customization)	35s
Build Examples (basic_charts)	35s
Build Examples (maps)	47s
Build Examples (kaleido)	1m 25s
Build Examples (images)	49s
Build Examples (themes)	33s
Build Examples (subplots)	32s
Build Examples (scientific_charts)	31s
Build Examples (ndarray)	35s
Build Examples (custom_controls)	37s
Build Examples (financial_charts)	33s
Test Static Export with Chrome (Windows)	3m 44s
Build Book	3m 3s
Build Examples (shapes)	35s
Build Examples (static_export)	1m 33s
	28m 57s

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