Support for pytest-subtests

I am using pytest-subtests because need to re-iterate over multiple things with different arguements and pytest_generate_tests doesn't work with fixtures.

collected 1 item                                                                                                                                                                                               

tests/test_x.py::test_hostname [Hostname] (i='HOSTNAME1') SUBPASS
tests/test_x.py::test_hostname [Hostname] (i='HOSTNAME2') SUBPASS
tests/test_x.py::test_hostname PASSED

Test Suite:

Test Metric:

It would be nice to see all the individual subtests in the HTML report.