reverting the waveform order when evaluating the value of a group (now descending)

Author: joern274

plugins/simulator/netlist_simulator_controller/src/wave_data.cpp

@@ -1204,14 +1204,14 @@ namespace hal {
 
     int WaveDataGroup::intValue(double t) const
     {
-        u32 mask = 1;
+        u32 mask = 1 << (mGroupList.size()-1);
         int retval = 0;
         for (const WaveData* wd : mGroupList)
         {
             int childVal = wd->intValue(t);
             if (childVal < 0) return childVal;
             if (childVal) retval |= mask;
-            mask <<= 1;
+            mask >>= 1;
         }
         return retval;
     }