Tuplets can now be removed & replaced by chosen note; works in undo and redo stack

Author: RMRattray

src/engraving/dom/score.cpp

@@ -1710,8 +1710,11 @@ void Score::removeElement(EngravingItem* element)
 
 void Score::removeTuplet(Tuplet* destinationTuplet, ChordRest* keptChordRest)
 {
-    // TODO: implement this function
-    
+    cmdDeleteTuplet(destinationTuplet, true);
+    if (keptChordRest->isChord()) {
+        addChord(destinationTuplet->tick(), destinationTuplet->ticks(), toChord(keptChordRest), false, destinationTuplet->tuplet());
+    }
+
     return;
 }