IcingaDb Cube: Add filter and problem only controls

[sukhwinder33445]

resolves #16

Blocked by

• https://github.com/Icinga/icingaweb2-module-cube/pull/97

[nilmerg]

Please create a new PR for the sort changes.

[sukhwinder33445]

• You need a utility procedure to apply the SearchBar's filter to the settings URL and the DimensionForm

Unfortunately, after setMultipartUpdate() is triggered, the search bar filter is empty and QueryString::render() returns an empty string. So $url->setQueryString(QueryString::render($filter))->addParams($otherParams);adds only the old params to the URL.

I tried this with commenting out the SearchBar.php::L456 but doesn't help much.

That's why I added the redirect as a workaround.