Swagger hack

It works! 

I've added/implemented a "swagger.api.packages" init parameter, that should contain a ',' (comma) separated list of packages that contain interfaces or implemenation classes whose info should be included in the Swagger API/UI. 

Once you (and/or Petr?) have verified this, we should probably move this to kie-remote-common. That way, we can configure Swagger in kie-wb to scan all of the interfaces (kie-server-services, drools-wb-rest and of course kie-remote-services). 

Re: UI work -- Have you looked at that at all? I've looked a little at it and think I know what to do, but if you have more experience with frontend stuff/javascript, it would be great if you could add that for kie-server-services (and then I can just copy it for kie-wb.. ).