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/pineco.asm

@@ -1,10 +1,10 @@
-; PinecoPokedexEntry: ; 0x1d04b0
 	db "BAGWORM@" ; species name
 	dw 200, 160 ; height, weight
 
 	db   "It spits out a"
 	next "fluid that it uses"
 	next "to glue tree bark"
+
 	page "to its body. The"
 	next "fluid hardens when"
 	next "it touches air.@"