[Bug Fix/Tweaks][WIP] World Factory UI alterations

Allows the use of ESC key in world creation menu. Ref: #3965
Moves world conversion naming logic out to a function so it can also be used by random world names until proper names are available for picking.
Print out [W]orld menu subitems, and [S]pecial menu subitems the same way as [N]ew Game subitems. Ref: #3966
Adds missing _|_ characters to bottom of first tab in world creation menu. Ref: #3963
Gets rid of the overlapping popups during newgame starting sequence. Ref: #3962

* Still need to get the refresh issue dealt with in New World creation menu confirmation screen.