Allow User to add Tokens

[Waidhoferj]

It'd be great if the user could add tokens if the token doesn't show up in the search field. In the simplest form, they would have to input a corresponding token value (ex. friendlyName : "Professor" -> serverKey : "[PROF]". This could be auto-populated with a case conversion of the friendly name, but we could leave it open to the user to change it up. It'd be great if this popup superimposed itself upon the clicked field so that the user doesn't have to swap between. Heres a quick mockup idea. Feel free to redesign