Proximity filter: correct AND condition on valid destination coordinates

We should add "Ensure that destination is valid"-condition exact to the same condition.
So I added new condition group and added our conditions to it.

We couldn't add another parameter to opSimple() method because of

Warning: Declaration of Drupal\rg_location\Plugin\views\filter\GeofieldContainsFilter::opSimple($options, Drupal\Core\Database\Query\Condition $condition) should be compatible with
Drupal\geofield\Plugin\views\filter\GeofieldProximityFilter::opSimple($options)

So I rename method to opSimpleMethod().

Patch will be attached.