move xmlstream and qzip into thirdparty
fix #25650
use char for some enums
move qzip and xmlstream into separate libs
fix mtest
fix #25646
fix #25666: link xmlstream under Windows
Merge pull request #892 from Jojo-Schmitz/25666-link-under-windows

fix #25666: link xmlstream under Windows
plugin access to small property for chords/rests
add plugin documentation for tpc1 and tpc2

and update the one for tpc