Add support for CoRE resource directory

[JKRhb]

I'd like to add support for the CoRE resource directory (draft-ietf-core-resource-directory-26) to the package. Maybe this could be added to the server node where the resource directory funtionality could be toggled via an option in the menu.

[JKRhb]

@pekkanikander: I've seen that you already tried to add this functionality to Node-RED as a separate package. Do you think it would be better to offer this feature as a seperate node/package? Or would you maybe like to join the effort to add to this one? :)

[pekkanikander]

Sorry @JKRhb it's been too long and I've since moved on to have any opinion. I don't basically remember anything about this any more. Feel free to use any of my old code completely freely, if it is of any use. I don't need to ask me any permission or keep me updated.

[JKRhb]

Sorry @JKRhb it's been too long and I've since moved on to have any opinion. I don't basically remember anything about this any more. Feel free to use any of my old code completely freely, if it is of any use. I don't need to ask me any permission or keep me updated.

Alright, thank you very much for the permission and for your quick response :)