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

Move some data into a pokemon/ subdirectory

data/pokemon/base_stats/wobbuffet.asm

@@ -0,0 +1,22 @@
+	db WOBBUFFET ; 202
+
+	db 190,  33,  58,  33,  33,  58
+	;   hp  atk  def  spd  sat  sdf
+
+	db PSYCHIC, PSYCHIC
+	db 45 ; catch rate
+	db 177 ; 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/wobbuffet/front.dimensions"
+	db 0, 0, 0, 0 ; padding
+	db MEDIUM_FAST ; growth rate
+	dn AMORPHOUS, AMORPHOUS ; egg groups
+
+	; tmhm
+	tmhm
+	; end