Added some module architecture

src/Artemis.Core/Exceptions/ArtemisCoreException.cs

@@ -0,0 +1,19 @@
+using System;
+
+namespace Artemis.Core.Exceptions
+{
+    public class ArtemisCoreException : Exception
+    {
+        public ArtemisCoreException()
+        {
+        }
+
+        public ArtemisCoreException(string message) : base(message)
+        {
+        }
+
+        public ArtemisCoreException(string message, Exception inner) : base(message, inner)
+        {
+        }
+    }
+}