feat(traces): add Funnel and Waterfall trace types #283

Job	Run time
Code Coverage	13s
Tests (ubuntu-latest, firefox, plotly_ndarray,plotly_image,static_export_geckodriver,static_expor...	1m 46s
semver	54s
Clippy	1m 54s
Rustfmt	15s
Build Wasm Examples (basic)	1m 7s
Build Book	1m 53s
Tests (windows-latest, chrome, plotly_ndarray,plotly_image,static_export_chromedriver,debug)	1m 42s
Build Wasm Examples (callback-example)	1m 3s
Build Examples (3d_charts)	30s
Tests (macos-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	1m 54s
Build Examples (customization/multiple_plots_example)	35s
Build Examples (basic_charts)	37s
Build Examples (financial_charts)	35s
Build Examples (customization/consistent_static_format_export)	1m 24s
Build Examples (custom_controls)	28s
Build Examples (images)	51s
Build Examples (customization/density_mapbox_example)	26s
Tests (ubuntu-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	1m 52s
Build Examples (themes)	36s
Build Examples (ndarray)	32s
Build Examples (scientific_charts)	33s
Build Examples (kaleido)	1m 16s
Build Examples (statistical_charts)	31s
Build Examples (maps)	37s
Build Examples (subplots)	29s
Build Examples (shapes)	29s
	25m 2s

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