Add ability to manually install puppet modules
Add ability to manually install puppet modules

This commit adds the ability to manually install puppet modules. This is
useful when using an installation method not provided by the
PUPPETFILE_DIR environment variable.

Change-Id: Ie6519d8adb989eaec59d2f3047205c4fa2212419

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration