Allow to set custom ResourceProvider

[xylo]

The "resourceProvider" is the last *Provider property of FXForm which hasn't yet been implemented as JavaFX property. Instead, it's a final field and cannot be replaced. I think it would be nice if users could replace this provider as well, because not everybody wants to store the field name translations in a resource bundle. E.g. in my case the translations are already stored in a database with thousands of other translations, thus, building a big resource bundle with all those translations doesn't make much sense in my case. Instead I would like to be able to redirect the access to the translations to my database.

[amischler]

Thanks. Deployed in 8.1.1-SNAPSHOT.

[Rizen59]

Deployed in 8.1.1

[xylo]

Thanks for the new release.