///<summary>
 

/// Extract files from a zip file, preserving the structure
 
///</summary>
///<param name="zipFilename">Name of the zip file</param>
///<param name="destFolder">Name of the folder to extract to</param>
///<param name="password">Password for the zip file. If blank there is no password.</param>
///<returns>True if successfull</returns>
ExtractFilesFromZip(string zipFilename, string destFolder, string password)