fix doxy file name entries

Tests/UnitTests/gui2/libtestmachinery/test_utils.h

auto/Wrap/doxygenSample.i

gui2/model/instrumentitems.h

gui2/model/sampleitems.h

mvvm/model/mvvm/commands/commandutils.h

mvvm/model/mvvm/core/filesystem.h

mvvm/model/mvvm/core/variant.h

mvvm/model/mvvm/core/version.h

mvvm/model/mvvm/factories/itemconverterfactory.h

mvvm/model/mvvm/factories/modelconverterfactory.h

mvvm/model/mvvm/model/customvariants.h

mvvm/model/mvvm/model/variant_constants.h

mvvm/model/mvvm/serialization/compatibilityutils.h

mvvm/model/mvvm/serialization/jsonitem_types.h

mvvm/model/mvvm/standarditems/axisitems.h

mvvm/model/mvvm/standarditems/plottableitems.h

mvvm/model/mvvm/standarditems/standarditemincludes.h

mvvm/model/mvvm/utils/threadsafestack.h

mvvm/tests/libtestmachinery/test_utils.h

mvvm/view/mvvm/widgets/standardtreeviews.h