Split map scripts, text, events from main.asm

The commit we deserve

maps/MobileTradeRoomMobile.asm

@@ -0,0 +1,63 @@
+MobileTradeRoomMobile_MapScriptHeader: ; 0x19356c
+	; trigger count
+	db 2
+
+	; triggers
+	dw UnknownScript_0x193576, $0000
+	dw UnknownScript_0x19357a, $0000
+
+	; callback count
+	db 0
+; 0x193576
+
+UnknownScript_0x193576: ; 0x193576
+	priorityjump UnknownScript_0x19357b
+	end
+; 0x19357a
+
+UnknownScript_0x19357a: ; 0x19357a
+	end
+; 0x19357b
+
+UnknownScript_0x19357b: ; 0x19357b
+	dotrigger $1
+	domaptrigger GROUP_POKECENTER_2F, MAP_POKECENTER_2F, $4
+	end
+; 0x193582
+
+MapMobileTradeRoomMobileSignpost0Script: ; 0x193582
+	refreshscreen $0
+	special $009f
+	2writetext UnknownText_0x193591
+	closetext
+	reloadmappart
+	special $0082
+	loadmovesprites
+	end
+; 0x193591
+
+UnknownText_0x193591: ; 0x193591
+	db $0, "Establishing", $4f
+	db "communications…", $57
+; 0x1935af
+
+MobileTradeRoomMobile_MapEventHeader: ; 0x1935af
+	; filler
+	db 0, 0
+
+	; warps
+	db 2
+	warp_def $7, $4, 5, GROUP_POKECENTER_2F, MAP_POKECENTER_2F
+	warp_def $7, $5, 5, GROUP_POKECENTER_2F, MAP_POKECENTER_2F
+
+	; xy triggers
+	db 0
+
+	; signposts
+	db 1
+	signpost 2, 4, $1, MapMobileTradeRoomMobileSignpost0Script
+
+	; people-events
+	db 0
+; 0x1935c4
+