Deprecate kaleido #611

Job	Run time
Clippy	3m 41s
Test Static Export with Chrome (Windows)	1m 32s
Rustfmt	15s
semver	53s
Build Wasm Examples (callback-example)	57s
Build Book	3m 15s
Tests (ubuntu-latest)	2m 48s
Tests (macos-latest)	3m 12s
Code Coverage	18s
Build Examples (basic_charts)	34s
Build Examples (financial_charts)	32s
Build Examples (customization)	32s
Build Wasm Examples (basic)	56s
Build Examples (shapes)	35s
Build Examples (static_export)	1m 29s
Build Examples (3d_charts)	33s
Build Examples (maps)	44s
Build Examples (scientific_charts)	32s
Build Examples (images)	48s
Build Examples (kaleido)	1m 27s
Build Examples (ndarray)	34s
Build Examples (subplots)	30s
Build Examples (custom_controls)	35s
Build Examples (themes)	33s
	27m 45s

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