Changes in core sitemap implementation

[jimtng]

openhab/openhab-core#5004

This will require some changes in our implementation too.

[mherwege]

This will require some changes in our implementation too.

I wasn't aware, sorry for not considering it. Do all these builders in jruby rely on the DSL model?

[ccutrer]

No, just the sitemap. The rest of them implement a provider that goes into the registry. But that didn't exist for sitemaps :).