Temporal coupling metric

[akash-manna-sky]

Temporal coupling metric

References:
"Your Code as a Crime Scene" (By Adam Tornhill) (page 72).

Fixes jenkinsci/git-forensics-plugin#1156

See : jenkinsci/git-forensics-plugin#1263

Testing done

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests that demonstrate the feature works or the issue is fixed