Merge pull request #5 from Xentrice/master

Fix MifareDesfire_WriteDataAsync:

Author: c3rebro

Elatec.NET.cs

@@ -1125,6 +1125,7 @@ public async Task MifareDesfire_WriteDataAsync(byte fileNo, byte[] data, Encrypt
                 bytes.AddUInt16((UInt16)(i * 0xFF));
                 bytes.Add((byte)lengthToWrite);
                 bytes.AddRange(data);
+                bytes.Add((byte)mode);
 
                 var parser = await CallFunctionAsync(bytes.ToArray());
                 success = parser.ParseBool();