Rename some labels

- Remove "Buffer" suffix from some byte and word quantities
- Change "Ptr" to "Pointer"

Fixes #789

engine/pokemon/breeding.asm

@@ -250,7 +250,7 @@ HatchEggs:
 	ld a, [wCurPartySpecies]
 	dec de
 	ld [de], a
-	ld [wNamedObjectIndexBuffer], a
+	ld [wNamedObjectIndex], a
 	ld [wCurSpecies], a
 	call GetPokemonName
 	xor a
@@ -673,7 +673,7 @@ EggHatch_DoAnimFrame:
 	ret
 
 EggHatch_AnimationSequence:
-	ld a, [wNamedObjectIndexBuffer]
+	ld a, [wNamedObjectIndex]
 	ld [wJumptableIndex], a
 	ld a, [wCurSpecies]
 	push af