Added performance test and removed sin(alpha) term in matrix calculation

...lipse.debug.core/.launches/GISASFW DWBA Formfactor.launch

...s/org.eclipse.debug.core/.launches/GISASFW Diffuse.launch

...rg.eclipse.debug.core/.launches/GISASFW Formfactor.launch

...s/org.eclipse.debug.core/.launches/GISASFW Fresnel.launch

.settings/org.eclipse.cdt.core.prefs

App/inc/TestPerformance.h

App/src/TestPerformance.cpp

Core/Algorithms/inc/SpecularMatrix.h

Core/Algorithms/src/OpticalFresnel.cpp

Core/Algorithms/src/SpecularMatrix.cpp

dev-tools/log/perf_history.txt