/// <summary>
/// Writes the BitfieldMessage data to a byte array.
/// </summary>
/// <param name="buffer">The byte array that the message data will be written to.</param>
/// <param name="offset">The position in the array at which the message begins.</param>
/// <returns>An integer representing the the amount of bytes written in the array.</returns>
public override int ToBytes(byte[] buffer, int offset)
{
var byteArray = new byte[(int)Math.Ceiling((double)Bitfield.Length / 8)];
Bitfield.CopyTo(byteArray, 0);
int start = offset;
offset += Write(buffer, offset, byteArray.Length + 1);
offset += Write(buffer, offset, (byte)5);
offset += Write(buffer, offset, byteArray);
return(offset - start);
}