Added projects MtApi4 and MtApi5

MtApi/MtApiColorConverter.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Drawing;
+
+namespace MtApi
+{
+    class MtApiColorConverter
+    {
+        public static Color ConvertFromMtColor(int color)
+        {
+            return Color.FromArgb(color);
+        }
+
+        public static int ConvertToMtColor(Color color)
+        {
+            return color == Color.Empty ? 0xffffff : (color.ToArgb() & 0xffffff);
+        }
+    }
+}