replace 'GISASInstr' by 'Scatter2DInstr'

GUI/Model/Device/InstrumentItems.cpp

GUI/Model/Device/InstrumentItems.h

GUI/Model/Device/InstrumentsCatalog.cpp

GUI/Model/FromCore/ItemizeSimulation.cpp

GUI/Model/Job/JobItem.cpp

GUI/Model/Job/ParameterTreeBuilder.cpp

GUI/View/Device/DetectorEditor.cpp

GUI/View/Device/DetectorEditor.h

GUI/View/Device/GISASBeamEditor.h

GUI/View/Instrument/Scatter2DInstrumentEditor.cpp

GUI/View/Instrument/Scatter2DInstrumentEditor.h

GUI/View/List/InstrumentsQListView.cpp

GUI/View/List/InstrumentsQModel.cpp

GUI/View/List/InstrumentsQModel.h

GUI/View/Views/InstrumentView.cpp

Tests/Unit/GUI/TestAutosaveController.cpp

Tests/Unit/GUI/TestDatafilesModel.cpp

Tests/Unit/GUI/TestInstrumentsSet.cpp

Tests/Unit/GUI/TestJobModel.cpp

Tests/Unit/GUI/TestLinkInstrument.cpp