Deletes a folder.
DirDelete DirName , Recurse
Type: String
Name of the directory to delete, which is assumed to be in A_WorkingDir if an absolute path isn't specified.
Type: Boolean
If omitted, it defaults to false.
If false, files and subdirectories contained in DirName are not removed. In this case, if DirName is not empty, no action is taken and an exception is thrown.
If true, all files and subdirectories are removed (like the Windows command "rmdir /S").
An exception is thrown if an error occurs.