Print status report after all tests ran

[MarvinJWendt]

We should print a status report after all tests ran.
We have to figure out what we can display. Furthermore, we can definitely display the succeeded and failed assertions count, and the count of how many tests use testza.

[MarvinJWendt]

I am currently not sure if this is even possible, as it seems there is no way to run code after all tests completed.