Top 10 entrance tasks

[karlnapf]

We still need to port more examples to the new system: #3555 #3580

In general, we want to use the new API Shogun wide, while cleaning up SWIG interfaces (as for example done in #4462 ) #4463

Using linalg everywhere in Shogun: #2747

Make use of the new progress bar #3889

Increase Shogun's benchmark coverage #3054 #4046

[karlnapf]

Please don't comment here, but in the referenced issues