12 tool manuals added

12 tool manuals and parts lists were added recently:

Clarke:
   - 2 grinder manuals

Delta:
   - 1 drill press manual

Jet:
   - 3 bench grinder manuals
   - 1 saw manual

Makita:
   - 2 rotary hammer parts lists, 1 rotary hammer repair manual
   - 1 saw manual

Porter-Cable:
   - 1 saw parts list