Fix UnidentifiedShape I/O

This MR fixes the I/O of the GeoUnidentifiedShape. In particular, it fixes the restore, which was broken in two points:

• the UnidentifiedShape name parameter was read from the DB instead of the asciiData, because the name was read twice (the index of the vector was not modified correctly)
• the UnidentifiedShape parameters were used in the wrong order and the shape was constructed in the wrong way: the constructor, in fact, was called as GeoUnidentifiedShape(asciiData, name) instead of the correct GeoUnidentifiedShape(name, asciiData)

This MR also adds a new CTest unit test to test the write and restore of the GeoUnidentifiedShape node.

Cc: @boudreau @tsulaia

GeoModelExamples/HelloToy/step1_create_store_geo_and_publish_nodes.cpp

@@ -441,8 +441,9 @@ int main(int argc, char *argv[])
 
 
   // Add a test "UnidentifiedShape" shape node
-  const std::string nameUnidentifiedShape = "LAr::Example";
-  GeoUnidentifiedShape* sUnidentifiedShape = new GeoUnidentifiedShape("LArCustomShape",nameUnidentifiedShape);
+  const std::string shapeUnidName = "LArCustomShape";
+  const std::string shapeUnidAscii = "LAr::Example";
+  GeoUnidentifiedShape* sUnidentifiedShape = new GeoUnidentifiedShape(shapeUnidName, shapeUnidAscii);
   const GeoLogVol* lUnidentifiedShape = new GeoLogVol("UnidentifiedShape", sUnidentifiedShape, steel);
   GeoPhysVol *pUnidentifiedShape = new GeoPhysVol(lUnidentifiedShape);
   GeoNameTag *nUnidentifiedShape = new GeoNameTag("UnidentifiedShape");