ReadFis2

 Loads the data file describing the FIS

 function fis=ReadFis2(FileName)

 Loads the data file describing the FIS
 -------------------------------------------------------------------------
 Parameters
 -------------------------------------------------------------------------
 FileName - the name of the file containing the system information (FIS).
            It can be either a classical *.fis file or an XML file (*.xml)
 -------------------------------------------------------------------------
 Returned values
 -------------------------------------------------------------------------
 fis - structure describing the Fuzzy Inference System
       fis--name
          |-FileName
          |-andMethod
          |-orMethod
          |-defuzzMethod
          |-impMethod
          |-aggMethod
          |-input(i)--name
          |          |-range
          |          |-mf(j)--name
          |                 |-type
          |                 |-params
          |                 |-paramsy
          |-output(k)--name
          |          |-range
          |          |-mf(l)--name
          |                 |-type
          |                 |-params
          |                 |-paramsy
          |-rule(m)--antecedent
          |        |-consequent
          |        |-weight
          |        |-connection
 -------------------------------------------------------------------------
 Remarks
 -------------------------------------------------------------------------

 Zsolt Csaba Johanyák, johanyak.csaba@gamf.kefo.hu, v. 1.0,  10. November 2006.