splitting orcid service into tier-1 and tier-2 pieces?

[arthurpsmith]

I've been figuring out the search bits but stumbling on the OAuth2 redirect issue (you can't redirect to anything but registered URL's so computed ones that come from a search don't work as far as I can tell). At some point that needs to be addressed but I'd like to get the simpler query stuff working as a client. It might be clearer to split the orcid service in the example client into tier-1 and tier-2 pieces - well, actually the client right now is only doing tier-2 stuff, so I guess what I'm proposing is to create a second implementation of the OrcidService interface that does tier-1.

If you see this and have any concerns about this direction please let me know, I'll probably get this going and post it as another pull request in about a week. Thanks!

[arthurpsmith]

By the way, working on this I accidentally triggered some 500 server errors on api.devsandbox - I think it happened when I sent a request to the Search URL with no query parameter - just straight http://api.devsandbox.orcid.org/search/orcid-bio