feat: add ScatterMap trace for the MapLibre map subplot (#417) #236

Job	Run time
Clippy	5m 52s
Code Coverage	18s
Rustfmt	16s
Tests (ubuntu-latest, firefox, plotly_ndarray,plotly_image,static_export_geckodriver,static_expor...	3m 32s
Build Book	4m 41s
Tests (macos-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	3m 50s
Build Wasm Examples (basic)	54s
semver	51s
Build Wasm Examples (callback-example)	1m 2s
Tests (ubuntu-latest, chrome, plotly_ndarray,plotly_image,static_export_default,debug)	3m 25s
Tests (windows-latest, chrome, plotly_ndarray,plotly_image,static_export_chromedriver,debug)	9m 32s
Build Examples (maps)	46s
Build Examples (custom_controls)	36s
Build Examples (statistical_charts)	29s
Build Examples (financial_charts)	35s
Build Examples (themes)	37s
Build Examples (customization/consistent_static_format_export)	1m 58s
Build Examples (scientific_charts)	28s
Build Examples (3d_charts)	35s
Build Examples (images)	50s
Build Examples (customization/multiple_plots_example)	37s
Build Examples (subplots)	36s
Build Examples (customization/density_mapbox_example)	31s
Build Examples (kaleido)	1m 26s
Build Examples (basic_charts)	27s
Build Examples (shapes)	36s
Build Examples (ndarray)	27s
	45m 47s

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