An interaction request handler that uses the
PasswordContainer service to
handle ::com::sun::star::ucb::AuthenticationRequests.
If the password container contains credentials matching the authentication
request, the service implementation selects the
::com::sun::star::ucb::XInteractionSupplyAuthentication
continuation, that should be supplied with the interaction request.
If the password container does not contain credentials matching the
authentication request, the service implementation selects no continuation.
