TEST: isct_test_function: added email sending feature
TEST: isct_test_function: added email sending feature

Former-commit-id: 6f47f14c9c847840a4673673a65052754f581e3c
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox