ENH: do not use Qt fromStdString since it causes runtime issues with VC2010

Code/Wrappers/QtWidget/otbWrapperQtWidgetChoiceParameter.cxx

...QtWidget/otbWrapperQtWidgetComplexInputImageParameter.cxx

...tWidget/otbWrapperQtWidgetComplexOutputImageParameter.cxx

...rappers/QtWidget/otbWrapperQtWidgetDirectoryParameter.cxx

...ers/QtWidget/otbWrapperQtWidgetInputFilenameParameter.cxx

...rs/QtWidget/otbWrapperQtWidgetInputImageListParameter.cxx

...appers/QtWidget/otbWrapperQtWidgetInputImageParameter.cxx

...Widget/otbWrapperQtWidgetInputVectorDataListParameter.cxx

...s/QtWidget/otbWrapperQtWidgetInputVectorDataParameter.cxx

...Wrappers/QtWidget/otbWrapperQtWidgetListViewParameter.cxx

...rs/QtWidget/otbWrapperQtWidgetOutputFilenameParameter.cxx

...ppers/QtWidget/otbWrapperQtWidgetOutputImageParameter.cxx

.../QtWidget/otbWrapperQtWidgetOutputVectorDataParameter.cxx

...appers/QtWidget/otbWrapperQtWidgetStringListParameter.cxx

Code/Wrappers/QtWidget/otbWrapperQtWidgetStringParameter.cxx