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/pupitar.asm

@@ -1,10 +1,10 @@
-; PupitarPokedexEntry: ; 0x1d1709
 	db "HARD SHELL@" ; species name
 	dw 311, 3350 ; height, weight
 
 	db   "It will not stay"
 	next "still, even while"
 	next "it's a pupa. It"
+
 	page "already has arms"
 	next "and legs under its"
 	next "solid shell.@"