added interface function zaxisInqVct to read the VCT

src/stream_cgribex.c

@@ -1963,7 +1963,7 @@ void cgribexDefLevel(int *isec1, int *isec2, double *fsec2, int zaxisID, int lev
 	else
 	  {
 	    ISEC2_NumVCP = vctsize;
-	    zaxisInqVct(zaxiID, &fsec2[10]);
+	    zaxisInqVct(zaxisID, &fsec2[10]);
 	  }
 	break;
       }