Deprecate kaleido #651

Job	Run time
Rustfmt	14s
Clippy	3m 36s
Build Book	3m 15s
Build Wasm Examples (callback-example)	59s
Build Wasm Examples (basic)	57s
Code Coverage	19s
semver	57s
Tests (windows-latest)	4m 22s
Tests (macos-latest)	4m 21s
Tests (ubuntu-latest)	2m 54s
Build Examples (financial_charts)	34s
Build Examples (kaleido)	1m 28s
Build Examples (custom_controls)	35s
Build Examples (images)	50s
Build Examples (3d_charts)	34s
Build Examples (customization)	35s
Build Examples (basic_charts)	34s
Build Examples (shapes)	33s
Build Examples (maps)	44s
Build Examples (themes)	33s
Build Examples (scientific_charts)	32s
Build Examples (subplots)	31s
Build Examples (ndarray)	35s
Build Examples (static_export)	1m 32s
	32m 4s

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