Merge branch 'less_verbose_testing' into 'master'

.gitlab-ci.yml

corsika/detail/framework/utility/SaveBoostHistogram.inl

examples/boundary_example.cpp

examples/cascade_example.cpp

examples/cascade_proton_example.cpp

examples/corsika.cpp

tests/framework/testCascade.cpp

tests/framework/testSolver.cpp

tests/modules/testNullModel.cpp

tests/modules/testOnShellCheck.cpp

tests/modules/testSibyll.cpp