Deprecate kaleido #670

Job	Run time
Rustfmt	16s
Tests (windows-latest)	5m 39s
Tests (ubuntu-latest)	3m 0s
Clippy	3m 40s
semver	56s
Tests (macos-latest)	5m 22s
Build Wasm Examples (callback-example)	57s
Code Coverage	22s
Build Book	3m 6s
Build Wasm Examples (basic)	58s
Build Examples (kaleido)	1m 34s
Build Examples (customization)	34s
Build Examples (custom_controls)	34s
Build Examples (basic_charts)	38s
Build Examples (shapes)	35s
Build Examples (ndarray)	35s
Build Examples (financial_charts)	35s
Build Examples (3d_charts)	35s
Build Examples (maps)	48s
Build Examples (scientific_charts)	34s
Build Examples (static_export)	1m 31s
Build Examples (themes)	33s
Build Examples (images)	47s
Build Examples (subplots)	32s
	34m 41s

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