Respect the "Play repeats" property of D.C. and D.S. [FEATURE]

[johentsch]

Is your feature request related to a problem? Please describe.

Currently the unfolded versions cannot distinguish between the two settings and defaults to ignoring repeats after a da capo or dal segno jump.

Describe the solution you'd like

The information whether the Play repeats property of a D.S. or D.C. sign is checked the inspector should be stored in an additional column of measure tables. If yes, the unfolding should repeat repeated sections once again. This should probably be reflected in the next column, too.

Implementation details

When checked, the respective <Jump> tag has an additional child <playRepeats>1</playRepeats>.

Example where this is relevant

ABC/n13op130_06 (see DCMLab/ABC#56 )