Add subdirectories to data/ similar to pokecrystal

Top level text/ is now solely for the former text/maps/ files, and other files are in their respective subdirectories in data/.

text/PokemonMansion3F.asm

@@ -0,0 +1,37 @@
+_Mansion3BattleText1::
+	text "This place is"
+	line "like, huge!"
+	done
+
+_Mansion3EndBattleText1::
+	text "Ayah!"
+	prompt
+
+_Mansion3AfterBattleText1::
+	text "I wonder where"
+	line "my partner went."
+	done
+
+_Mansion3BattleText2::
+	text "My mentor once"
+	line "lived here."
+	done
+
+_Mansion3EndBattleText2::
+	text "Whew!"
+	line "Overwhelming!"
+	prompt
+
+_Mansion3AfterBattleText2::
+	text "So, you're stuck?"
+	line "Try jumping off"
+	cont "over there!"
+	done
+
+_Mansion3Text5::
+	text "Diary: Feb. 6"
+	line "MEW gave birth."
+
+	para "We named the"
+	line "newborn MEWTWO."
+	done