(PDB-2072) Lazily create extensions in test db
(PDB-2072) Lazily create extensions in test db

... so that they will work on a system that has they already installed
in template1. 

mullr/puppetdb,puppetlabs/puppetdb,senior/puppetdb,mullr/puppetdb,rbrw/puppetdb,senior/puppetdb,senior/puppetdb,mullr/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,rbrw/puppetdb,mullr/puppetdb,waynr/puppetdb,waynr/puppetdb,kbarber/puppetdb,rbrw/puppetdb,mullr/puppetdb,waynr/puppetdb,senior/puppetdb,waynr/puppetdb,puppetlabs/puppetdb,kbarber/puppetdb,rbrw/puppetdb,kbarber/puppetdb,rbrw/puppetdb,puppetlabs/puppetdb,kbarber/puppetdb