Clean up comments

Base data: types uniquely lacked a comment; items on one line; distinguish unknowns
Dex entries: don't imply that pointers don't exist

data/pokemon/dex_entries/fearow.asm

@@ -1,10 +1,10 @@
-; FearowPokedexEntry: ; 0x181f64
 	db "BEAK@" ; species name
 	dw 311, 840 ; height, weight
 
 	db   "It uses its long"
 	next "beak to attack. It"
 	next "has a surprisingly"
+
 	page "long reach, so it"
 	next "must be treated"
 	next "with caution.@"