static internal FileSize FromGo(long Go)
 {
     FileSize res = new FileSize();
     res.SizeInGo=Go;
     return res;
 }
 static internal FileSize FromMo(long MO)
 {
       FileSize res = new FileSize();
     res.SizeInMo=MO;
     return res;
 }
 static internal FileSize FromMo(double MO)
 {
     FileSize res = new FileSize();
     res.DoubleSizeInMo = MO;
     return res;
 }
 static internal FileSize FromKO(long KO)
 {
    FileSize res = new FileSize();
     res.SizeInKo=KO;
     return res;
 }