11 lawn mower manuals added

11 more lawn mower manuals and parts lists have been added recently:

- Bunton: 2 lawn mower parts lists
- DR: 2 lawn mower manuals
- John Deere: 2 lawn mower manuals
- Murray: 1 lawn mower parts list
- Neuton: 2 lawn mower manuals, 2 battery charger manuals