Quest Editor - Create optional 'explorer' view for sprite selection in the entities menus

[ffomega]

Currently, when choosing a sprite to display for entities in all entity menus, the option to select a sprite is chosen by a dropdown list. I believe we can change the view options to allow a dropdown list or an "explorer" view like traditional windows explorer windows, in which all the project folders are shown in a left panel, and all sprites within a selected folder are shown on the right. It would allow finding desired sprites for entities to be much easier and faster than having to search through a collapsing list. This will also make viewing of larger sprite thumbnails, as well as allow users to view more preview images at one time for more efficient searching. A Search feature can even be added in case a user forgets where a sprite is located within their project(s) for a more windows explorer aesthetic.

[PhoenixII54]

Nice idea, and we could even expand this explorer window to any resource file selector (such as destination maps for teletransporters)