Greener: lean and mean test result explorer

Test frameworks usually produce custom test output by default (along with exit code). For example, pytest (test framework for Python) gives something like this: tests/test_apikey_controller.py::test_create[db_sqlite] PASSED [ 25%] tests/test_apikey_controller.py::test_get[db_sqlite] PASSED [ 50%] tests/test_apikey_controller.py::test_list[db_sqlite] PASSED [ 75%]…