More GUIs!

Main theme of this update is GUI improvements! Lots of them!

Random Changelog that is probably missing things:

-Added Gui for listing all your snitches
-Improved Gui for listing all your snitch lists
-Allow you to see all snitches that are a part of a certain snitch list
-Allow you to see all snitch lists that are attached to a snitch
-Made scroll bars work on all the lists!
-Made snitch and snitch list saving be synchronous so as to hopefully avoid cutoff bugs
-Fixed some bugs relating to handling snitch rendering
-Fixed some data structure problems related to multiple worlds