Adding script files to the files list

Each policy has a Files list. When a DataStore policy is configured, the Files list is a list of script(s) that are executed when the backup is initiated. That script is executed as a user-directed backup. The script should contain any commands that are required to prepare the application for a backup, including setting up an environment, halting processes, and so on, along with calling the XBSA application with the parameters that are required to execute the backup operations.