feat: improves AdvancedMarkers collision comments and snippets (#1716)

feat: copies some snippets that were in v3 only to gms (#1715)

* feat: copies some snippets that were in v3 only to gms
chore: the java compatibility version

* fix: updates copyright dates and adds missing copyright

* fix: copyright header for strings.xml

* fix: set Java Version back to 17

* fix: set Java Version back to 17

* fix: set Java Version back to 17

* fix: set Java Version back to 17

* fix: set Java Version back to 17

* feat: creates AdvancedMarkersCollisionActivity to demonstrate marker collision behavior

* chore: not adding jar files in libs directory

* feat: set Java 21 everywhere

---------

Co-authored-by: Enrique López Mañas <[email protected]>

feat: added Kotlin MapColorScheme sample (#1712)

* feat: added Kotlin MapColorScheme sample

* chore: added header in XML file

* feat: added Kotlin MapColorScheme sample

* feat: Java demo

fix: updated dependencies to solve compilation issue (#1557)

* fix: versions and dependencies updated to allow compilation

* fix: duplicated libraries

* fix: updated Gradle

* fix: updated Manifest

* fix: updated Gradle

* fix: fixed header

feat: add Advanced Markers Samples (#1435)

feat: adding styled map sample (#1433)

feat: removed renderer selection from the samples (#1430)

Since the new renderer is default as of Maps SDK for Android v18.2.0, the renderer selection is unnecessary for these demos.

feat: updated targetSdk and compileSdk (#1428)

* feat: updated targetSdk and compileSdk

* docs: added licenses

* docs: excluded markdown files from header check

fix: fixed NPE on OnMapAndViewReadyListener (#1116)

fix: revert dependencies to last green build (#937)