Adding new function (Marian)

Adding new function (Marian)

 AliXRDPROOFtoolkit::XRDCopyDir(const char * idir, const char * files, const char *odir, Bool_t zip){
  //
  // idir  - input directory
  // odir  - output directory
  // files - the list of files to be coppied
  // zip   - not supported yet
  //
  // Example :
  //
  // idir ="root://gsiaf.gsi.de:1094//sma/sim/v4-05-Rev-03/pp/0000";
  // odir ="root://lxgrid2.gsi.de:1094//miranov/test/pp/0000";
  // char *files="AliESDs.root AliESDfriend.root Kinematics.root";