New ScanMinimizer to scan fit parameter space for minimum chi2 value

App/App.pro

App/inc/ROOTMinimizer.h

App/inc/ROOTMinimizerFunction.h

App/src/IsGISAXSData.cpp

App/src/IsGISAXSTools.cpp

App/src/ROOTMinimizer.cpp

App/src/ROOTMinimizerFunction.cpp

App/src/TestIsGISAXS12.cpp

App/src/TestIsGISAXS13.cpp

Core/Core.pro

Core/Fitting/inc/FitParameterLinked.h

Core/Fitting/inc/FitSuite.h

Core/Fitting/inc/FitSuiteParameters.h

Core/Fitting/inc/IMinimizer.h

Core/Fitting/inc/MinimizerScan.h

Core/Fitting/inc/MinimizerTest.h

Core/Fitting/src/FitParameterLinked.cpp

Core/Fitting/src/FitSuite.cpp

Core/Fitting/src/FitSuiteParameters.cpp

Core/Fitting/src/MinimizerScan.cpp