Add package install support for tuskar

Support installing from packages and source for the tuskar element.

Change-Id: I189748f91b17e398d15b91bd1bd6ce2f2de02a73
Add package install support for tuskar-ui

Support installing from packages and source for the tuskar-ui element.

Change-Id: If42ca22fb173df0b35155ce760b94c1c6f2f9d28