Enhance ScopeToPullRequest to validate only changed lines in PR

[ajeckmans]

This PR enhances the ScopeToPullRequest feature to not only limit the format check to files in the PR, but also to only check formatting issues on the lines that have actually changed in the PR. This is particularly useful for files with conditional compilation blocks or other platform-specific code that might have formatting issues that are not relevant to the current changes.

Changes made:

1. Updated the PullRequestFileChange type to include an array of line numbers that have changed in the file
2. Modified the getPullRequestChanges method to include the inlineChangedLines=true parameter
3. Updated the getChangedFilesInPR function to extract and include line changes in PullRequestFileChange objects
4. Enhanced the runFormatCheck function to filter format check results to only include issues in the changed lines
5. Added tests to verify the new functionality
6. Updated the README to document the enhanced feature

[sonarqubecloud]

Quality Gate failed

Failed conditions
D Reliability Rating on New Code (required ≥ A)

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[sonarqubecloud]

Quality Gate passed

Issues
4 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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