Additional things needed for saving

[edisonout]

• Some of the level names are too long so they aren't shown correctly on the selection screen.
• We should be able to save characters & costumes, and thus skip character selection screen when selecting a used slot
• Add option to delete slots individually
• Add option to select save slot from command line

[edisonout]

Saves should also save which levels have been unlocked.

[didory123]

Also, it seems like saves don't save misc items like lightning.
As for the level names, I'm not sure how we're going to tackle that, since we can't really make the names smaller. Making the save screen bigger would probably be a better fix.

[NimbusBP1729]

a possible solution: slightly wider screen and displaying prefixes and suffixes when the name is longer than we have support for

e.g.

Black-Caverns-2 would be:

Blac...ns-2

I think this was done for deleted, but retrievable files on very archaic systems.(not so archaic that they followed the 8.3 rule)

[kyleconroy]

Much of this is now done. I think we can work on a different issue if we want to improve saved game deletion.