Feature to write out jumps and repeates (Linearization)

I (and maybe others) use jumps and repeates during "protoyping" of a song and after a while have to linearize the score before starting with the arrangement. This becomes necessary in larger arrangements, where struktural parts (Verses, Choruses, etc) are seldomly repeated exactly.

The core idea is simple:
A) Figure out repeated sections
B) Clone each repeated part at the end of the current score measure-by-measure, one repeated section at a time
C) Do a pass over the final result, removing all repeat markings (repeat barlines, seignos, codas, fines, etc).
D) Output everything in a new score

There is already an active pull request: https://github.com/musescore/MuseScore/pull/4644