WIP: Resolve "deprecate old basler implementation"

This merge request will be merged in two steps. In the first step it will remove the unofficial basler wrapper currently residing in cameraBasler.py. That wrapper will be replaced by the official pypylon library provided by basler currently residing in cameraBaslerOfficial.py.

To simplify migration a file cameraBaslerOfficial.py will still be provided, that import the classes from their new location, while also outputting a deprecation warning. This migration file will then be deleted as second and final part of this merge request.

Closes #12 (closed)