Improve filter long list preset display in Sampler
So far I've noticed Sampler displays filter presets differently it seems depending on the amount of presets available: when only a few presets, it renders them so they appear visually, which is fine. When there are more presets, it displays them in list. This is a problem when there are many presets (like more than 10 etc.) at this takes a lot of vertical space before being able to edit the filter parameters. Another problem is Sampler does not respect the ordering of presets made in Designer, it sorts them alphabetically, which contradicts the custom sorting ability Designer provides. So my requests are:
1/ Display long preset list in a combo box, as this is the case in Designer or Painter.
2/ Respect the ordering of presets made in the SBSAR.
