This patch adds the relevant KAuth code to file ioslave that can be used to perform various file management operations with escalated privilege.
//execWithRoot()// : This method performs the specified operation as root
//warningMessage()//: Decides upon the warning message. As of yet it only has warning for the delete operation.
//showWarning()//: Shows the warning.
meta-data "UnitTesting" will be used in unit test for this code.