Split items/ and trainers/ into their data/ and engine/ components

Move some data into a pokemon/ subdirectory

data/pokemon/base_stats/qwilfish.asm

@@ -0,0 +1,22 @@
+	db QWILFISH ; 211
+
+	db  65,  95,  75,  85,  55,  55
+	;   hp  atk  def  spd  sat  sdf
+
+	db WATER, POISON
+	db 45 ; catch rate
+	db 100 ; base exp
+	db NO_ITEM ; item 1
+	db NO_ITEM ; item 2
+	db GENDER_F50 ; gender
+	db 100 ; unknown
+	db 20 ; step cycles to hatch
+	db 5 ; unknown
+	INCBIN "gfx/pics/qwilfish/front.dimensions"
+	db 0, 0, 0, 0 ; padding
+	db MEDIUM_FAST ; growth rate
+	dn FISH, FISH ; egg groups
+
+	; tmhm
+	tmhm HEADBUTT, CURSE, ROLLOUT, TOXIC, HIDDEN_POWER, SNORE, BLIZZARD, ICY_WIND, PROTECT, RAIN_DANCE, ENDURE, FRUSTRATION, RETURN, DOUBLE_TEAM, SWAGGER, SLEEP_TALK, SLUDGE_BOMB, SWIFT, DEFENSE_CURL, REST, ATTRACT, SURF, WHIRLPOOL, WATERFALL, ICE_BEAM
+	; end