g/j2: Implement speedrunner mode in jak 2

[xTVaser]

• Have to test with new game from hero mode
• Have to test with the livesplit stuff end-to-end
• Adds a way for the game to encode utf8 strings to the game formatting so I can use jak 2's nicer font for the info overlay
• Info overlay is hidden at the end of escape
• Adds a speedrun menu, but uses the debug-menu code instead. This is definitely nicer and faster than opening a progress menu, though this will require some retail-mode testing because a lot of those files are labelled as debug only. Just going to write my own popup menu code