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/PokemonMansion1F.asm

@@ -0,0 +1,29 @@
+_Mansion1BattleText2::
+	text "Who are you? There"
+	line "shouldn't be"
+	cont "anyone here."
+	done
+
+_Mansion1EndBattleText2::
+	text "Ouch!"
+	prompt
+
+_Mansion1AfterBattleText2::
+	text "A key? I don't"
+	line "know what you're"
+	cont "talking about."
+	done
+
+_MansionSwitchText::
+	text "A secret switch!"
+
+	para "Press it?"
+	done
+
+_MansionSwitchPressedText::
+	text "Who wouldn't?"
+	prompt
+
+_MansionSwitchNotPressedText::
+	text "Not quite yet!"
+	done