feat: added Advanced Markers Samples

[kikoso]

The following PR adds the Advanced Marker Samples, showcasing the following functionality:

• Setting an iconView for the marker view.
• Using PinConfig to set the icon for AdvancedMarkerOptions.
• Changing the border color of an Advanced Marker.
• Setting Text Color using a Glyph.
• Creating a transparent Glyph.
• Collision Behavior.

Examples are provided in Java and Kotlin.

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• Make sure to open a GitHub issue as a bug/feature request before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea
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• Code coverage does not decrease (if any source code was changed)
• Appropriate docs were updated (if necessary)

Fixes #1434 🦕

[googlemaps-bot]

🎉 This PR is included in version 1.10.0 🎉

The release is available on GitHub release

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