improved labels on discovery result

Signed-off-by: Kai Kreuzer <kai@openhab.org> (github: @kaikreuzer)
introduced dashboard

Signed-off-by: Kai Kreuzer <kai@openhab.org> (github: @kaikreuzer)
introduced default sitemap provider

Signed-off-by: Kai Kreuzer <kai@openhab.org> (github: @kaikreuzer)
restructured deliverables

Signed-off-by: Kai Kreuzer <kai@openhab.org> (github: @kaikreuzer)