DataModelTestDataCommon: selection.xml fix

Accessor classes were moved from SG::AuxElement to SG::.

Control/DataModelTest/DataModelTestDataCommon/DataModelTestDataCommon/selection.xml

@@ -30,7 +30,7 @@
   <class name="DMTest::CLinksAOD" id="99D3AFCC-F13B-4A15-B2C8-800FB4B8EC92"/>
 
   <class name="DMTest::CView::Pers_t" id="CDB407A6-1B30-4214-BC29-47268D2F28F7"/>
-  <class name="SG::AuxElement::ConstAccessor<ElementLink<DMTest::CVec_v1> >"/>
+  <class name="SG::ConstAccessor<ElementLink<DMTest::CVec_v1> >"/>
 
   <function name="DMTest::setPluginLibrary"/>
   <function name="DMTest::setConverterLibrary"/>