Use appdmg_eula provider
Use appdmg_eula provider

For details see boxen/puppet-boxen/commit/e3896c2334b657d865a466cc22dc0725aae95eb4

Closes #1
dennisreimann/puppet-pgadmin3,dennisreimann/puppet-pgadmin3,theand-boxen/puppet-pgadmin3,theand-boxen/puppet-pgadmin3,dennisreimann/puppet-pgadmin3