bagpipe palette updates
extend styles and inspector; add new bagpipe palette to master palette
fix #22186: MIDI Import Panel doesn't appear for .kar files
Merge pull request #435 from trig-ger/midi_kar

fix #22186: MIDI Import Panel doesn't appear for .kar files
fix #21246, other fixes for text
fix #22177: Stave text doesn't move in accordance with re-positioned instrument
fix #22195: MIDI Import Panel columns not adjustable or scrollable
Merge pull request #436 from trig-ger/midi_panel

fix #22195: MIDI Import Panel columns not adjustable or scrollable
fix master palette for bagpipe
fix handling of return key in styled text
fix Del key handling in simpletext, avoid crash
fix #22177
updates for style
Swing option for MIDI import
Tests for swing
Make SwingDetector class private
Equal spacing of swung notes
"Shuffle" word for 3:1 swing
Fix tuplet and rest deletion
fix #22175