Add an attachment into a sharepoint list.
|ListTitle||String||Title of the list item.|
|ItemId||String||Id of the list item.|
|FileName||String||Name of the File to be added in document library|
|InputFilePath||String||Location of the file to be attached.|
Result Set Columns
|RelativeUrl||String||Relative URL of the attachment that has been added.|
|Status||String||Message indicating whether the operation was successful or not.|