[fix] Allow applying a property to a proxy of the same group in LoadLidarState

During loadLidarState function, the property was applied only if a proxy of the same name of the one saved was found in the pipeline.
For exemple : If you save the LidarState with a LidarPacketInterpreter i1 and you open a file using a LidarPacketInterpreter i2.
The properties saved from i1 couldn't be applied to i2.
This commit allows applying the property to a proxy of the same group.

If the property is not found in this proxy, the message is still display to the user.

ApplicationComponents/lqHelper.cxx

@@ -217,7 +217,7 @@ std::string GetGroupName(vtkSMProxy * existingProxy, const std::string & proxyTo
   vtkSMSessionProxyManager* pxm = existingProxy->GetSessionProxyManager();
   vtkSMProxyDefinitionManager* pxdm = pxm->GetProxyDefinitionManager();
 
-  if(pxdm)
+  if(!pxdm)
   {
     std::cout << "Couldn't get the SM Proxy DefinitionManager" << std::endl;
     return "";