Start PyPersistenceTest, to resolve #1440

Tests/Functional/CMakeLists.txt

Tests/Functional/Core/CoreTest.h

Tests/Functional/Fit/FitTest.cpp

Tests/Functional/PyCore/export/CMakeLists.txt

Tests/Functional/PyCore/export/PyExportStandardTest.cpp

Tests/Functional/PyCore/export/PyExportTest.cpp

Tests/Functional/PyCore/export/PyExportTest.h

Tests/Functional/PyCore/legacy/CMakeLists.txt

Tests/Functional/PyCore/legacy/README

Tests/Functional/PyCore/legacy/customformfactor.py

Tests/Functional/PyCore/legacy/cylinders_ba_dwba_size.py

Tests/Functional/PyCore/legacy/detector_resolution.py

Tests/Functional/PyCore/legacy/intensitydata.py

Tests/Functional/PyCore/legacy/intensitydata_io.py

Tests/Functional/PyCore/legacy/intensitydata_io_tiff.py

Tests/Functional/PyCore/legacy/layerwithroughness.py

Tests/Functional/PyCore/legacy/mesocrystal1.py

Tests/Functional/PyCore/legacy/montecarlo_integration.py

Tests/Functional/PyCore/legacy/polmagcylinders1.py

Tests/Functional/PyCore/legacy/polmagcylinders2.py