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/quagsire.asm

@@ -1,10 +1,10 @@
-; QuagsirePokedexEntry: ; 0x1d00dd
 	db "WATER FISH@" ; species name
 	dw 407, 1650 ; height, weight
 
 	db   "Its body is always"
 	next "slimy. It often"
 	next "bangs its head on"
+
 	page "the river bottom"
 	next "as it swims but"
 	next "seems not to care.@"