Split map scripts, text, events from main.asm

The commit we deserve

maps/Route1718Gate.asm

@@ -0,0 +1,82 @@
+Route1718Gate_MapScriptHeader: ; 0x73607
+	; trigger count
+	db 1
+
+	; triggers
+	dw UnknownScript_0x7360d, $0000
+
+	; callback count
+	db 0
+; 0x7360d
+
+UnknownScript_0x7360d: ; 0x7360d
+	end
+; 0x7360e
+
+UnknownScript_0x7360e: ; 0x7360e
+	jumptextfaceplayer UnknownText_0x7362c
+; 0x73611
+
+UnknownScript_0x73611: ; 0x73611
+	checkitem BICYCLE
+	iffalse UnknownScript_0x73617
+	end
+; 0x73617
+
+UnknownScript_0x73617: ; 0x73617
+	showemote $0, $2, 15
+	spriteface $0, $1
+	loadfont
+	2writetext UnknownText_0x7364d
+	closetext
+	loadmovesprites
+	applymovement $0, MovementData_0x73629
+	end
+; 0x73629
+
+MovementData_0x73629: ; 0x73629
+	step_right
+	turn_head_left
+	step_end
+; 0x7362c
+
+UnknownText_0x7362c: ; 0x7362c
+	db $0, "CYCLING ROAD", $4f
+	db "Uphill Starts Here", $57
+; 0x7364d
+
+UnknownText_0x7364d: ; 0x7364d
+	db $0, "Hang on! Don't you", $4f
+	db "have a BICYCLE?", $51
+	db "The CYCLING ROAD", $4f
+	db "is beyond here.", $51
+	db "You have to have a", $4f
+	db "BICYCLE to go on.", $57
+; 0x736b6
+
+Route1718Gate_MapEventHeader: ; 0x736b6
+	; filler
+	db 0, 0
+
+	; warps
+	db 4
+	warp_def $4, $0, 1, GROUP_ROUTE_17, MAP_ROUTE_17
+	warp_def $5, $0, 2, GROUP_ROUTE_17, MAP_ROUTE_17
+	warp_def $4, $9, 1, GROUP_ROUTE_18, MAP_ROUTE_18
+	warp_def $5, $9, 2, GROUP_ROUTE_18, MAP_ROUTE_18
+
+	; xy triggers
+	db 2
+	xy_trigger 0, $4, $5, $0, UnknownScript_0x73611, $0, $0
+	xy_trigger 0, $5, $5, $0, UnknownScript_0x73611, $0, $0
+
+	; signposts
+	db 0
+
+	; people-events
+	db 1
+	person_event $43, 6, 9, $6, $0, 255, 255, $90, 0, UnknownScript_0x7360e, $ffff
+; 0x736ed
+
+
+