Display raw score in JSON report

[Sam152]

Current problem

In 3.0.0a4, it's possible to see the score in the JSON report, however it's formatted as a human readable string.

Desired solution

Allow the JSON report to include a float of the raw score out of 10 and potentially an extra human readable version too. Maybe something like:

{
  'score': 8.51,
  'score_summary': 'Your code has been rated at 8.51/10'
}

Additional context

No response

[Pierre-Sassoulas]

Duplicate of #4741