added test project and put integration and unit tests under single test project

server.tests/unitTests/CharacterControllerUnitTests.cs

@@ -0,0 +1,18 @@
+using Moq;
+using server.Controllers.v1;
+using server.Persistence.Repositories;
+
+namespace server.tests.unitTests
+{
+    public class CharacterControllerUnitTests
+    {
+        private readonly Mock<ICharacterRepository> _mockRepo;
+        private readonly CharactersController _controller;
+
+        public CharacterControllerUnitTests()
+        {
+            _mockRepo = new Mock<ICharacterRepository>();
+            _controller = new CharactersController(_mockRepo.Object);
+        }
+    }
+}