Added first controller unit test as well as several mock services

ComiServUnitTest/Mocks/MockPictureConverter.cs

@@ -0,0 +1,33 @@
+using ComiServ.Background;
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComiServUnitTest.Mocks
+{
+	internal class MockPictureConverter : IPictureConverter
+	{
+		public MockPictureConverter()
+		{
+
+		}
+
+		public Task<Stream> MakeThumbnail(Stream image)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<Stream> Resize(Stream image, Size newSize, PictureFormats? newFormat = null)
+		{
+			throw new NotImplementedException();
+		}
+
+		public Task<Stream> ResizeIfBigger(Stream image, Size maxSize, PictureFormats? newFormat = null)
+		{
+			throw new NotImplementedException();
+		}
+	}
+}