[CF-183] Don't scan all nova resources if filter by tenant is specified
[CF-183] Don't scan all nova resources if filter by tenant is specified

MirantisWorkloadMobility/CloudFerry,MirantisWorkloadMobility/CloudFerry,MirantisWorkloadMobility/CloudFerry,MirantisWorkloadMobility/CloudFerry,SVilgelm/CloudFerry,SVilgelm/CloudFerry,mgrygoriev/CloudFerry,SVilgelm/CloudFerry,mgrygoriev/CloudFerry,SVilgelm/CloudFerry,mgrygoriev/CloudFerry,mgrygoriev/CloudFerry