Copies all templates found in the root of any element into the
default template location.
These templates will be filled in from heat metadata by
os-config-applier whenever it is run.
Update keystone to install templates in this way as an example.
Change-Id: I0be0a79a431e9ba5b80e84f130c48d5ce8b100ae
Co-Authored-By: Tim Miller <tim.miller.0@gmail.com>
