replace 'GUI::Base::Path' by 'GUI::Path'

App/AppOptions.cpp

App/main.cpp

GUI/Model/Device/InstrumentLibrary.cpp

GUI/Model/Project/ProjectDocument.cpp

GUI/Support/Util/ItemFileNameUtil.cpp

GUI/Support/Util/Path.cpp

GUI/Support/Util/Path.h

GUI/View/Frame/#Plot2DFrame.cpp#

GUI/View/Main/AboutDialog.cpp

GUI/View/Main/ActionManager.cpp

GUI/View/Main/MainWindow.cpp

GUI/View/Manager/ProjectLoadProblemDialog.cpp

GUI/View/Manager/PyImportAssistant.cpp

GUI/View/Project/ProjectsView.cpp

Tests/Unit/GUI/TestHelpers.cpp