Split map scripts, text, events from main.asm

The commit we deserve

maps/Route16Gate.asm

@@ -0,0 +1,86 @@
+Route16Gate_MapScriptHeader: ; 0x733e3
+	; trigger count
+	db 1
+
+	; triggers
+	dw UnknownScript_0x733e9, $0000
+
+	; callback count
+	db 0
+; 0x733e9
+
+UnknownScript_0x733e9: ; 0x733e9
+	end
+; 0x733ea
+
+UnknownScript_0x733ea: ; 0x733ea
+	jumptextfaceplayer UnknownText_0x73408
+; 0x733ed
+
+UnknownScript_0x733ed: ; 0x733ed
+	checkitem BICYCLE
+	iffalse UnknownScript_0x733f3
+	end
+; 0x733f3
+
+UnknownScript_0x733f3: ; 0x733f3
+	showemote $0, $2, 15
+	spriteface $0, $1
+	loadfont
+	2writetext UnknownText_0x73496
+	closetext
+	loadmovesprites
+	applymovement $0, MovementData_0x73405
+	end
+; 0x73405
+
+MovementData_0x73405: ; 0x73405
+	step_right
+	turn_head_left
+	step_end
+; 0x73408
+
+UnknownText_0x73408: ; 0x73408
+	db $0, "CYCLING ROAD", $4f
+	db "starts here.", $51
+	db "It's all downhill,", $4f
+	db "so it's totally", $55
+	db "exhilarating.", $51
+	db "It's a great sort", $4f
+	db "of feeling that", $51
+	db "you can't get from", $4f
+	db "a ship or train.", $57
+; 0x73496
+
+UnknownText_0x73496: ; 0x73496
+	db $0, "Hey! Whoa! Stop!", $51
+	db "You can't go out", $4f
+	db "on the CYCLING", $51
+	db "ROAD without a", $4f
+	db "BICYCLE.", $57
+; 0x734df
+
+Route16Gate_MapEventHeader: ; 0x734df
+	; filler
+	db 0, 0
+
+	; warps
+	db 4
+	warp_def $4, $0, 4, GROUP_ROUTE_16, MAP_ROUTE_16
+	warp_def $5, $0, 5, GROUP_ROUTE_16, MAP_ROUTE_16
+	warp_def $4, $9, 2, GROUP_ROUTE_16, MAP_ROUTE_16
+	warp_def $5, $9, 3, GROUP_ROUTE_16, MAP_ROUTE_16
+
+	; xy triggers
+	db 2
+	xy_trigger 0, $4, $5, $0, UnknownScript_0x733ed, $0, $0
+	xy_trigger 0, $5, $5, $0, UnknownScript_0x733ed, $0, $0
+
+	; signposts
+	db 0
+
+	; people-events
+	db 1
+	person_event $43, 6, 9, $6, $0, 255, 255, $90, 0, UnknownScript_0x733ea, $ffff
+; 0x73516
+