Higher-level composables for common map experiences

Creating this issue to gauge interest; please upvote with a 👍 reaction or comment if this is appealing to you.

Similar to what the [Extended Component Library](https://github.com/googlemaps/extended-component-library) offers for web developers, is there interest in higher-level composables that provide familiar UI elements related to showing Maps, Places, and Routes information in Android apps?

The granularity can range from [building blocks](https://github.com/googlemaps/extended-component-library/blob/main/src/place_building_blocks/README.md) (e.g. a star rating graphic that corresponds to a place's star rating from Place Details) to [high-level](https://github.com/googlemaps/extended-component-library/blob/main/src/store_locator/README.md) (e.g. a store locator that combines a map, markers, and place details panel about each place on the locator). You can explore the configurability by exploring supported attributes for each component (composable).


Das Issue nennt keine Repository-Dateien, Tests oder konkrete Composable, die geändert werden soll. Beginne damit, die bestehende Android Maps Compose API sowie die verlinkten Extended Component Library building-block und store-locator examples zu prüfen; die Arbeit ist nicht bereit zu beginnen, bis Maintainer den Umfang der Komponente und die Akzeptanzkriterien festlegen.

Vom Indexierungsmodell aus dem Issue-Text verfasst.