This commit enables lnd to request and renew a Let's Encrypt
certificate. This certificate is used both for the grpc as well as the
rest listeners. It allows clients to connect without having a copy of
the (public) server certificate.
Co-authored-by: Vegard Engen <vegard@engen.priv.no>
A profile file can contain multiple profile entries. Each
entry has a name, a set of default options to use and an optional list
of macaroons in a jar. The profile file can be
serialized/deserialized to and from JSON.