New Common splash based on the marquee graphic.
Permissions fixup for assets.
Ignore Thumbs.db files
Blue-ened life bar border.
Converted `ScreenGameplay out` to a directory.
Extra select icons removed (I think they're generated on the fly now).
Messed with `ScreenGameplay out` screen.

* The fade delay is now much shorter. The default delay seemed uncomfortably long.
* Added the word "Cleared" because I like acknowledgement (and 5th Mix).
* Added a graphic with the word "Cleared" as a placeholder. It's ugly, but it almost matches (and should be fixed alongside) the other messages of its kind.
* Applied the same updates to the rave mode messages.
* Factored out the redundant `InitCommand` and `OnCommand` defs for the messages.