Post-stream bits and bobs

- Reused the double doors for the Route 2 gate, and added the warp for it
- Changed the Route 2 map to have the ledge on the path this irritated the fucking LIFE out of me
- Pokemon Tower takes you to the right place when going down.
- Kotora line now has Flash
- Refactored Gentlarva
- Route 2 gate now uses the double doors.
- New hidden Moon Stone where the Clefairy are in Mt. Moon
- Added a new Paradox Pokemon-themed border by Gecko557
- Shifted a ledge in Cerulean City that was off-centre in a really jarring way
- Added the Nugget glitch from FRLG because it's funny and cool

data/events/hidden_item_coords.asm

@@ -63,4 +63,5 @@ HiddenItemCoords:
 	hidden_item MT_MOON_CRATER,				   20,  17 ; Black Augurite
 	hidden_item MT_MOON_CRATER,				   32,  45 ; Old Amber
 	hidden_item DAYCARE,					    4,   1 ; Daycare PC
+	hidden_item MT_MOON_SQUARE,				    5,   5 ; Moon Stone
 	db -1 ; end

data/events/hidden_objects.asm

@@ -89,6 +89,7 @@ HiddenObjectMaps:
 	db VERMILION_DOCK
 	db MT_MOON_CRATER
 	db DAYCARE
+	db MT_MOON_SQUARE
 	db -1 ; end
 
 HiddenObjectPointers:
@@ -183,6 +184,7 @@ HiddenObjectPointers:
 	dw VermilionDockHiddenObjects
 	dw MtMoonCraterHiddenObjects
 	dw DaycareHiddenItems
+	dw MtMoonSquareHiddenItems
 
 MACRO hidden_object
 	db \2 ; y coord
@@ -661,3 +663,7 @@ MtMoonCraterHiddenObjects:
 DaycareHiddenItems:
 	hidden_object  4,  1, SPRITE_FACING_UP, OpenPokemonCenterPC
 	db -1
+
+MtMoonSquareHiddenItems:
+	hidden_object  5,  5, MOON_STONE, HiddenItems
+	db -1