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/.

data/pokemon/base_stats/squirtle.asm

@@ -0,0 +1,28 @@
+db DEX_SQUIRTLE ; pokedex id
+db 44 ; base hp
+db 48 ; base attack
+db 65 ; base defense
+db 43 ; base speed
+db 50 ; base special
+db WATER ; species type 1
+db WATER ; species type 2
+db 45 ; catch rate
+db 66 ; base exp yield
+INCBIN "gfx/pokemon/front/squirtle.pic",0,1 ; 55, sprite dimensions
+dw SquirtlePicFront
+dw SquirtlePicBack
+; attacks known at lvl 0
+db TACKLE
+db TAIL_WHIP
+db 0
+db 0
+db 3 ; growth rate
+; learnset
+	tmlearn 1,5,6,8
+	tmlearn 9,10,11,12,13,14
+	tmlearn 17,18,19,20
+	tmlearn 28,31,32
+	tmlearn 33,34,40
+	tmlearn 44
+	tmlearn 50,53,54
+db 0 ; padding