More vacuum manuals added

19 more vacuum manuals have been added to the site recently:

Bissell: 2 vacuum manuals, 1 vacuum parts list, 1 vacuum maintenance guide
Bosch: 2 vacuum parts lists
Dyson: 2 vacuum manuals, 1 vacuum parts list
Eureka: 1 vacuum accessory manual
Oreck: 3 vacuum manuals
Ridgid: 2 vacuum manuals
Shop-Vac: 4 vacuum parts lists