[run-qemu] log error messages in main UI

[chantra]

There is 2 changes:

• move the jq logic parsing the test json summary to a python script. The main purpose here is to:
  • have more flexibility. in the way we can handle the data and make the output easier to read in the UI
  • make the logic unitestable
• Add a workflow that actually run the python script against a fixture file, making it easy to visually assess the accuracy/rendering.

The end result looks like: