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/caterpie.asm

@@ -1,10 +1,10 @@
-; CaterpiePokedexEntry: ; 0x181a60
 	db "WORM@" ; species name
 	dw 100, 60 ; height, weight
 
 	db   "It crawls into"
 	next "foliage where it"
 	next "camouflages itself"
+
 	page "among leaves that"
 	next "are the same color"
 	next "as its body.@"