Split map scripts, text, events from main.asm

The commit we deserve

maps/Route7SaffronGate.asm

@@ -0,0 +1,66 @@
+Route7SaffronGate_MapScriptHeader: ; 0x73516
+	; trigger count
+	db 0
+
+	; callback count
+	db 0
+; 0x73518
+
+UnknownScript_0x73518: ; 0x73518
+	faceplayer
+	loadfont
+	checkbit1 $00c9
+	iftrue UnknownScript_0x73526
+	2writetext UnknownText_0x7352c
+	closetext
+	loadmovesprites
+	end
+; 0x73526
+
+UnknownScript_0x73526: ; 0x73526
+	2writetext UnknownText_0x73592
+	closetext
+	loadmovesprites
+	end
+; 0x7352c
+
+UnknownText_0x7352c: ; 0x7352c
+	db $0, "Did you hear about", $4f
+	db "the accident at", $55
+	db "the POWER PLANT?", $51
+	db "It's located in", $4f
+	db "the East, close to", $55
+	db "LAVENDER TOWN.", $57
+; 0x73592
+
+UnknownText_0x73592: ; 0x73592
+	db $0, "I take my GUARD", $4f
+	db "job seriously.", $51
+	db "Hey! You have a", $4f
+	db "#DEX.", $51
+	db "OK. You can go", $4f
+	db "through.", $57
+; 0x735e0
+
+Route7SaffronGate_MapEventHeader: ; 0x735e0
+	; filler
+	db 0, 0
+
+	; warps
+	db 4
+	warp_def $4, $0, 1, GROUP_ROUTE_7, MAP_ROUTE_7
+	warp_def $5, $0, 2, GROUP_ROUTE_7, MAP_ROUTE_7
+	warp_def $4, $9, 10, GROUP_SAFFRON_CITY, MAP_SAFFRON_CITY
+	warp_def $5, $9, 11, GROUP_SAFFRON_CITY, MAP_SAFFRON_CITY
+
+	; xy triggers
+	db 0
+
+	; signposts
+	db 0
+
+	; people-events
+	db 1
+	person_event $43, 6, 9, $6, $0, 255, 255, $90, 0, UnknownScript_0x73518, $ffff
+; 0x73607
+