Add EiRegisterParty and EiOpt services to VTN
In order to have a B profile compliant server (or even just a compliant server as B profile implementation is required for all servers) we need to implement the EiRegisterParty and EiOpt services at some point. The data structures for handling these already exist in the client library but the flow described in the spec will need to be implemented and endpoints added to the server.
Edited by Ben Aylott