Process the execution results

[Stranger6667]

Given the list of responses / mapping case-response we need to process it and create some summary from it. We can start with a simple report:

• Number of successful responses
• Number of failed responses

The output could be a simple dictionary, for now, that could be formatted later into stdout text representation or to some JSON.

We need the summary to measure how many failures are there + if we will provide some additional info (e.g. on what input happened certain error), then it will help to fix the issues itself

[Stranger6667]

Currently, the execution will stop on the first failing test, but it should execute all of them.

Update. Fixed