[ #37142 ] Add a security evaluation framework

src/CMakeLists.txt

src/account.cpp

src/account.h

src/accountlistmodel.cpp

src/certificate.cpp

src/certificate.h

src/securityvalidationmodel.cpp

src/securityvalidationmodel.h

src/visitors/pixmapmanipulationvisitor.cpp

src/visitors/pixmapmanipulationvisitor.h