Split map scripts, text, events from main.asm

The commit we deserve

maps/CeladonMansion2F.asm

@@ -0,0 +1,70 @@
+CeladonMansion2F_MapScriptHeader: ; 0x7152e
+	; trigger count
+	db 0
+
+	; callback count
+	db 0
+; 0x71530
+
+MapCeladonMansion2FSignpost0Script: ; 0x71530
+	jumptext UnknownText_0x71539
+; 0x71533
+
+MapCeladonMansion2FSignpost1Script: ; 0x71533
+	jumptext UnknownText_0x7162c
+; 0x71536
+
+MapCeladonMansion2FSignpost2Script: ; 0x71536
+	jumpstd $0001
+; 0x71539
+
+UnknownText_0x71539: ; 0x71539
+	db $0, $52, " turned on", $4f
+	db "the PC.", $51
+	db "…", $51
+	db "Someone was in the", $4f
+	db "middle of compos-", $55
+	db "ing an e-mail.", $51
+	db "…I hope you'll", $4f
+	db "come visit KANTO.", $51
+	db "I think you'll be", $4f
+	db "surprised at how", $51
+	db "much things have", $4f
+	db "changed here.", $51
+	db "You'll also see", $4f
+	db "many #MON that", $51
+	db "aren't native to", $4f
+	db "JOHTO.", $51
+	db "To the PRODUCER", $51
+	db "…", $57
+; 0x7162c
+
+UnknownText_0x7162c: ; 0x7162c
+	db $0, "GAME FREAK", $4f
+	db "MEETING ROOM", $57
+; 0x71645
+
+CeladonMansion2F_MapEventHeader: ; 0x71645
+	; filler
+	db 0, 0
+
+	; warps
+	db 4
+	warp_def $0, $0, 4, GROUP_CELADON_MANSION_1F, MAP_CELADON_MANSION_1F
+	warp_def $0, $1, 2, GROUP_CELADON_MANSION_3F, MAP_CELADON_MANSION_3F
+	warp_def $0, $6, 3, GROUP_CELADON_MANSION_3F, MAP_CELADON_MANSION_3F
+	warp_def $0, $7, 5, GROUP_CELADON_MANSION_1F, MAP_CELADON_MANSION_1F
+
+	; xy triggers
+	db 0
+
+	; signposts
+	db 3
+	signpost 3, 0, $0, MapCeladonMansion2FSignpost0Script
+	signpost 8, 5, $1, MapCeladonMansion2FSignpost1Script
+	signpost 3, 2, $0, MapCeladonMansion2FSignpost2Script
+
+	; people-events
+	db 0
+; 0x7166e
+