finished unit tests and docstrings

MalwareMultiScan.Backends/Enums/BackendType.cs

@@ -1,14 +1,48 @@
 namespace MalwareMultiScan.Backends.Enums
 {
+    /// <summary>
+    /// Backend type.
+    /// </summary>
     public enum BackendType
     {
+        /// <summary>
+        /// Dummy
+        /// </summary>
         Dummy,
+        
+        /// <summary>
+        /// Windows Defender.
+        /// </summary>
         Defender,
+        
+        /// <summary>
+        /// ClamAV.
+        /// </summary>
         Clamav,
+        
+        /// <summary>
+        /// DrWeb.
+        /// </summary>
         DrWeb,
+        
+        /// <summary>
+        /// KES.
+        /// </summary>
         Kes,
+        
+        /// <summary>
+        /// Comodo.
+        /// </summary>
         Comodo,
+        
+        /// <summary>
+        /// Sophos.
+        /// </summary>
         Sophos,
+        
+        /// <summary>
+        /// McAfee.
+        /// </summary>
         McAfee
     }
 }