[epic][qe-core] Using Robot Framework in openQA
Robot Framework is a generic keyword-driven test framework which allows to define test cases in different formats, most commonly used, gherkin and keyword driven tests.
Since Robot Framework allows to write custom libraries, it is agnostic to the test driver, which could be Selenium, PyTest, or even in our case, openQA's testapi.py.
Once this epic is complete, we should have an idea on where it could be further integrated into our tooling and how other testing tools could be coupled with openQA, always scheduling and reporting results using openQA, regardless of how the implementation is done (i.e using avocado, or LAVA instead of os-autoinst)
Initial tasks should be able to tell us, whether that's something we'd like to look in the future, moreover what are the risks and constraints we will have to take into account. So that test developers can write tests in different programming languages, and that over time, test cases can be expressed in a much simpler way (see Gherkin) which can then be used for knowing exactly what certain type of test is doing (think End to End Testing).