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/PewterNidoranHouse.asm

@@ -0,0 +1,24 @@
+_PewterHouse1Text1::
+	text "NIDORAN: Bowbow!@@"
+
+_PewterHouse1Text2::
+	text "NIDORAN sit!"
+	done
+
+_PewterHouse1Text3::
+	text "Our #MON's an"
+	line "outsider, so it's"
+	cont "hard to handle."
+
+	para "An outsider is a"
+	line "#MON that you"
+	cont "get in a trade."
+
+	para "It grows fast, but"
+	line "it may ignore an"
+	cont "unskilled trainer"
+	cont "in battle!"
+
+	para "If only we had"
+	line "some BADGEs..."
+	done