New options added to configuration file to reference a public key used
to validate authorization tokens signed by an auth server with
corresponding private key.
Resolves#24
Signed-off-by: Peter Engelbert <pmengelbert@gmail.com>
1) github.com/jtblin/go-ldap-client is an abandoned project and not keeping
up with go modules, so pull that code in (single file, BSD license)
2) minor refactor ldap as a result of 1)
3) update go.mod
