Rename some more maps

The Pokécom Center's .blk contains 1F and the Administration room, but the .asm script is just for the Admin room; 1F-related text and scripts are in GoldenrodPokecenter1F.asm. Presumably both map scripts shared the same .blk.

maps/BillsBrothersHouse.asm

@@ -0,0 +1,48 @@
+const_value set 2
+	const BILLSBROTHERSHOUSE_POKEFAN_F
+	const BILLSBROTHERSHOUSE_YOUNGSTER
+
+BillsBrothersHouse_MapScripts:
+.SceneScripts:
+	db 0
+
+.MapCallbacks:
+	db 0
+
+BillsBrotherScript:
+	jumptextfaceplayer BillsBrotherText
+
+BillsBrothersHouseYoungsterScript:
+	jumptextfaceplayer BillsBrothersHouseYoungsterText
+
+BillsBrotherText:
+	text "My grandpa is at "
+	line "my brother BILL's"
+	cont "on CERULEAN CAPE."
+	done
+
+BillsBrothersHouseYoungsterText:
+	text "I saw these weird,"
+	line "slow #MON on"
+	cont "CYCLING ROAD."
+	done
+
+BillsBrothersHouse_MapEvents:
+	; filler
+	db 0, 0
+
+.Warps:
+	db 2
+	warp_def 2, 7, 4, FUCHSIA_CITY
+	warp_def 3, 7, 4, FUCHSIA_CITY
+
+.CoordEvents:
+	db 0
+
+.BGEvents:
+	db 0
+
+.ObjectEvents:
+	db 2
+	object_event 2, 3, SPRITE_POKEFAN_F, SPRITEMOVEDATA_STANDING_RIGHT, 0, 0, -1, -1, PAL_NPC_RED, OBJECTTYPE_SCRIPT, 0, BillsBrotherScript, -1
+	object_event 6, 4, SPRITE_YOUNGSTER, SPRITEMOVEDATA_WALK_UP_DOWN, 0, 1, -1, -1, 0, OBJECTTYPE_SCRIPT, 0, BillsBrothersHouseYoungsterScript, -1