CATROID-1140 Refactor adapter and related files of ScriptFragment to kotlin

[bengaal]

Ticket: https://jira.catrob.at/browse/CATROID-1140

Refactored BrickAdapter, BrickListView and BrickAdapterInterface to kotlin

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[bengaal]

Currently the test AddBrickFloatingBehaviorTest is failing due to the refactored class BrickAdapter being mocked in the test, which Mockito cannot do, since the Kotlin classes are final by default. One workaround would be to make the class open, but that would be antipattern against Kotlin. I've tried converting the test to Kotlin, but that didn't solve the issue.

[bengaal]

We've managed to fix the test with @mseiser. The test happened to be in the wrong folder.

[mseiser]

looks good, review done in PP

[Walcho1125]

Thanks!