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/exeggutor.asm

@@ -1,10 +1,10 @@
-; ExeggutorPokedexEntry: ; 0x1b8ff6
 	db "COCONUT@" ; species name
 	dw 607, 2650 ; height, weight
 
 	db   "Living in a good"
 	next "environment makes"
 	next "it grow lots of"
+
 	page "heads. A head that"
 	next "drops off becomes"
 	next "an EXEGGCUTE.@"