Split map scripts, text, events from main.asm

The commit we deserve

maps/BattleTowerElevator.asm

@@ -0,0 +1,71 @@
+BattleTowerElevator_MapScriptHeader: ; 0x9f558
+	; trigger count
+	db 2
+
+	; triggers
+	dw UnknownScript_0x9f562, $0000
+	dw UnknownScript_0x9f567, $0000
+
+	; callback count
+	db 0
+; 0x9f562
+
+UnknownScript_0x9f562: ; 0x9f562
+	priorityjump UnknownScript_0x9f568
+	dotrigger $1
+; 0x9f567
+
+UnknownScript_0x9f567: ; 0x9f567
+	end
+; 0x9f568
+
+UnknownScript_0x9f568: ; 0x9f568
+	follow $2, $0
+	applymovement $2, MovementData_0x9f58f
+	applymovement $0, MovementData_0x9f592
+	writebyte $a
+	special $0086
+	playsound $006e
+	earthquake 60
+	waitbutton
+	follow $2, $0
+	applymovement $2, MovementData_0x9e578
+	stopfollow
+	warpsound
+	disappear $2
+	applymovement $0, MovementData_0x9e578
+	warpcheck
+	end
+; 0x9f58f
+
+MovementData_0x9f58f: ; 0x9f58f
+	step_right
+	turn_head_down
+	step_end
+; 0x9f592
+
+MovementData_0x9f592: ; 0x9f592
+	turn_head_down
+	step_end
+; 0x9f594
+
+BattleTowerElevator_MapEventHeader: ; 0x9f594
+	; filler
+	db 0, 0
+
+	; warps
+	db 2
+	warp_def $3, $1, 1, GROUP_BATTLE_TOWER_HALLWAY, MAP_BATTLE_TOWER_HALLWAY
+	warp_def $3, $2, 1, GROUP_BATTLE_TOWER_HALLWAY, MAP_BATTLE_TOWER_HALLWAY
+
+	; xy triggers
+	db 0
+
+	; signposts
+	db 0
+
+	; people-events
+	db 1
+	person_event $42, 6, 5, $9, $0, 255, 255, $0, 0, MovementData_0x9f58f, $ffff
+; 0x9f5b1
+