@param right is true if we change the right side of the item, false otherwise
@param right is true if we change the right side of the item, false otherwise
@param logUndo if set to true, an undo object is created
@param logUndo if set to true, an undo object is created
@param snap if set to true, the resize order will be coerced to use the snapping grid
@param snap if set to true, the resize order will be coerced to use the snapping grid
if @param allowSingleResize is false, then the resize will also be applied to any clip in the same AV group (allow resizing audio and video at the same