Added Flying from Town Map (#129)

* Added ability to fly from Town Map

* Refactored UI_RegionMap code

Data/Scripts/Gen 8 notes.txt

@@ -8,9 +8,6 @@ Other notes:
 - If a battle ends because of Rocky Helmet damage, the side that the Rocky
   Helmet holder is on should lose (Gen 7+) or win (Gen 6-).
 
-Can use Fly from within the Town Map if possible. (Good QoL, add if possible.)
-(Will be implemented by me in the next PR)
-
 Make example event that combines the Gen 8 fossils.
 
 #===============================================================================
@@ -24,8 +21,6 @@ toggled. (Probably don't bother implementing.)
 
 Bicycle that can work on water.
 
-Town Map added to the pause menu. (Don't bother adding.)
-
 Remote access to storage boxes via the party screen if you have the Pokémon Box
 Link item (and it's allowed to be used - in Gyms and some other places it's
 forbidden).
@@ -92,6 +87,10 @@ New evolution methods:
 
 Added AI for new moves/items/abilities.
 
+Can use Fly from within the Town Map if possible.
+
+Town Map added to the pause menu.
+
 Ability Effect Changes
 - Intimidate now triggers Rattled. Rattled needs a new ability handler just for
   triggering this way.