LP1825896 Store workstations in Hatch when available

LP1825896 Store workstations in Hatch when available

When Hatch is enabled, use Hatch for storing workstation registration
information.

If workstations are found in localStorage, they are merged into the
collection of workstations stored in hatch and removed from
localStorage.

Include DB udpate to add workstation setting 'eg.hatch.enable.printing'
so that it may live on the server.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Jason Boyer <JBoyer@eoli.info>