(maint) Ensure logging is set in unconfigured mode
(maint) Ensure logging is set in unconfigured mode

In case no config file was specified from CL, we check if the default
one exists; in case not we set logging at debug level before starting
the agent in unconfigured mode.

puppetlabs/pxp-agent,puppetlabs/pxp-agent,puppetlabs/pxp-agent