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/azumarill.asm

@@ -1,10 +1,10 @@
-; AzumarillPokedexEntry: ; 0x1cd771
 	db "AQUARABBIT@" ; species name
 	dw 207, 630 ; height, weight
 
 	db   "The bubble-like"
 	next "pattern on its"
 	next "stomach helps it"
+
 	page "camouflage itself"
 	next "when it's in the"
 	next "water.@"