Add jwt support for thing-url-adapter

[MarcGraham]

Will use token if one available. Add Authorization header to requests, adds same header to query string -- ?Authorization=Bearer jwt -- for web socket connections. Tokens can be entered in the thing-url-adapter config page. Use format hostname:port jwt with a space between I was able to test everything except the performAction and cancelAction functions.

[MarcGraham]

Sweet -- nice to see it in.

I noticed something that could be simplified at line 858

Can probably just be

adapter.authData[urlStub] = url.authentication;

[mrstegeman]

Good call. Done.