Added a test controller for versioning.

src/Volo.Abp.Identity.HttpApi.Host/VersioningTests/CallsController.cs

@@ -0,0 +1,28 @@
+using System.Collections.Generic;
+using Microsoft.AspNetCore.Mvc;
+using Volo.Abp.Application.Dtos;
+using Volo.Abp.AspNetCore.Mvc;
+
+namespace Volo.Abp.Identity.HttpApi.Host.VersioningTests
+{
+    [Route("api/calls")]
+    public class CallsController : AbpController
+    {
+        private static List<CallDto> _calls = new List<CallDto>
+        {
+            new CallDto {Id = 1, Number = "123456"},
+            new CallDto { Id = 2, Number = "123457" }
+        };
+
+        [HttpGet]
+        public List<CallDto> GetList()
+        {
+            return _calls;
+        }
+    }
+
+    public class CallDto : EntityDto<int>
+    {
+        public string Number { get; set; }
+    }
+}