All headers are updated to have common web address

App/src/TestConvolution.cpp

App/src/TestDetectorResolution.cpp

App/src/TestDiffuseReflection.cpp

App/src/TestFittingModule1.cpp

App/src/TestFittingModule2.cpp

App/src/TestFittingModule3.cpp

App/src/TestFittingModule4.cpp

App/src/TestFormFactor.cpp

App/src/TestFormFactors.cpp

App/src/TestFourier.cpp

App/src/TestFumiliLMA.cpp

App/src/TestFunctionalTests.cpp

App/src/TestInfLongBox.cpp

App/src/TestInfLongRipple1.cpp

App/src/TestInfLongRipple2.cpp

App/src/TestIsGISAXS12.cpp

App/src/TestIsGISAXS13.cpp

App/src/TestIsGISAXS5.cpp

App/src/TestMesoCrystal1.cpp

App/src/TestMiscellaneous.cpp