Change BuildWriteBytesPackage to use MemoryStream.

S7.Net/Helper/MemoryStreamExtension.cs

@@ -0,0 +1,18 @@
+
+namespace S7.Net.Helper
+{
+    internal static class MemoryStreamExtension
+    {
+        /// <summary>
+        /// Helper function to write to whole content of the given byte array to a memory stream.
+        /// 
+        /// Writes all bytes in value from 0 to value.Length to the memory stream.
+        /// </summary>
+        /// <param name="stream"></param>
+        /// <param name="value"></param>
+        public static void WriteByteArray(this System.IO.MemoryStream stream, byte[] value)
+        {
+            stream.Write(value, 0, value.Length);
+        }
+    }
+}