New: Bump Version to V3 to please the masses

src/Radarr.Api.V3/ProviderTestAllResult.cs

@@ -0,0 +1,18 @@
+using System.Collections.Generic;
+using FluentValidation.Results;
+using NzbDrone.Common.Extensions;
+
+namespace Radarr.Api.V3
+{
+    public class ProviderTestAllResult
+    {
+        public int Id { get; set; }
+        public bool IsValid => ValidationFailures.Empty();
+        public List<ValidationFailure> ValidationFailures { get; set; }
+
+        public ProviderTestAllResult()
+        {
+            ValidationFailures = new List<ValidationFailure>();
+        }
+    }
+}