deprecate old basler implementation

With the new pypylon interface provided by basler and the seemingly working implementation in cameraBaslerOfficial.py it no longer really makes sense to have two basler implementations. So The unofficial wrapper should be deprecated.

I already added a warning while merging !7 (merged) so everyone who updates their git repositories regularly (aka. nobody...) should receive that.

My suggestion for migrating would be the following:

• Remove unofficial implementation (cameraBasler)
• Move the code from cameraBaslerOfficial to cameraBasler to keep file names uniform
• Add deprecation warning to cameraBaslerOfficial but add a workaround to import the code from cameraBasler for some time
• After a short period of time actually remove cameraBaslerOfficial for good