Added glissando filter.
Added glissando filter test.
Added base(unfiltered) tests for each element filter.
Added breath filter.
Added test for breath filter.
Added highlighting of hooks and grace notes.
Added other text filter.
Added test for other text.
Added filter for other lines
Added test for other lines
Added tremolo highlighting and filter
Added test for tremolo
Added grace note filtering
Changed test to not check for filtering of 2-note tremolo
With the current approach this filter is impossible to implement
Merge pull request #1055 from MarcSabatella/28041-graphic-z

fix #28041: image z-order
Merge pull request #1066 from BartlomiejLewandowski/similar-range-more

Added selection range filter to Select Window
Merge pull request #1073 from BartlomiejLewandowski/12960-paste-two-voice

Staff paste with multiple voices
fix compilation errors in tests
fix compilation errors in tests (2)
fix compilation errors in tests (3 and last)