Split map scripts, text, events from main.asm

The commit we deserve

maps/Route7.asm

@@ -0,0 +1,56 @@
+Route7_MapScriptHeader: ; 0x1ad380
+	; trigger count
+	db 0
+
+	; callback count
+	db 0
+; 0x1ad382
+
+MapRoute7Signpost0Script: ; 0x1ad382
+	jumptext UnknownText_0x1ad388
+; 0x1ad385
+
+MapRoute7Signpost1Script: ; 0x1ad385
+	jumptext UnknownText_0x1ad456
+; 0x1ad388
+
+UnknownText_0x1ad388: ; 0x1ad388
+	db $0, "What's this flyer?", $51
+	db "… Uncouth trainers", $4f
+	db "have been holding", $51
+	db "battles in the", $4f
+	db "UNDERGROUND PATH.", $51
+	db "Because of rising", $4f
+	db "complaints by lo-", $55
+	db "cal residents, the", $55
+	db "UNDERGROUND PATH", $55
+	db "has been sealed", $55
+	db "indefinitely.", $51
+	db "CELADON POLICE", $57
+; 0x1ad456
+
+UnknownText_0x1ad456: ; 0x1ad456
+	db $0, "It's locked…", $57
+; 0x1ad463
+
+Route7_MapEventHeader: ; 0x1ad463
+	; filler
+	db 0, 0
+
+	; warps
+	db 2
+	warp_def $6, $f, 1, GROUP_ROUTE_7_SAFFRON_GATE, MAP_ROUTE_7_SAFFRON_GATE
+	warp_def $7, $f, 2, GROUP_ROUTE_7_SAFFRON_GATE, MAP_ROUTE_7_SAFFRON_GATE
+
+	; xy triggers
+	db 0
+
+	; signposts
+	db 2
+	signpost 11, 5, $0, MapRoute7Signpost0Script
+	signpost 9, 6, $0, MapRoute7Signpost1Script
+
+	; people-events
+	db 0
+; 0x1ad47d
+