AdHocFilters: Add support for new isOneOf multi value operator (#91837)

* handle oneOf operator in prometheus

* use new supportsMultiValueOperators

* remap oneOf to regex in prometheus datasource

* Remap one of operators for scope filters

* use plugin.json property instead of feature toggle

* optional chaining

* fix unit tests

* use getInstanceSettings

* update to latest scenes

* fix unit tests

---------

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

pkg/api/frontendsettings.go

@@ -449,11 +449,12 @@ func (hs *HTTPServer) getFSDataSources(c *contextmodel.ReqContext, availablePlug
 		dsDTO.Preload = plugin.Preload
 		dsDTO.Module = plugin.Module
 		dsDTO.PluginMeta = &plugins.PluginMetaDTO{
-			JSONData:  plugin.JSONData,
-			Signature: plugin.Signature,
-			Module:    plugin.Module,
-			BaseURL:   plugin.BaseURL,
-			Angular:   plugin.Angular,
+			JSONData:                  plugin.JSONData,
+			Signature:                 plugin.Signature,
+			Module:                    plugin.Module,
+			BaseURL:                   plugin.BaseURL,
+			Angular:                   plugin.Angular,
+			MultiValueFilterOperators: plugin.MultiValueFilterOperators,
 		}
 
 		if ds.JsonData == nil {