Define some common test plans that run all features #4576
Description
Extracted from #4208. Basically we are starting to redefine again and again some test plans that do the same thing: run a basic plan with all features enabled and verified. So it would be good to consolidate much of those.
Basically we can have two commonly used plans minimal and full, which run the minimum features (discover+execute) or all features (dependencies, libraries, etc.). This can be reused when we want to test against different provision types, or with minor adjustments to them. This would not change the specific plans that test various types of discover plugins, but can serve as the baseline from where to expand from.
If we move these to pytest, then we will get the added benefit of being able to run these only once and use the tests to verify various aspects of the run.