new feature for change data cal

[ChaseMillers]

PR Description:

Overview

This utility provides manual similarity scoring between ServiceNow change request records using text analysis, without requiring machine learning. It helps developers and admins find similar changes by comparing descriptions and calculating similarity scores programmatically.

How It Works

1. Extracts keywords from change request descriptions
2. Compares keyword overlap between change requests
3. Calculates a similarity score (0-100%)
4. Finds and ranks similar change requests based on score

Features

• Compare change request descriptions using keyword matching
• Calculate similarity scores between change requests
• Find and rank similar changes programmatically
• No ML or Predictive Intelligence required

Test:

Pull Request Checklist

Overview

• Put an x inside of the square brackets to check each item.
• I have read and understood the CONTRIBUTING.md guidelines
• My pull request has a descriptive title that accurately reflects the changes and the description has been filled in above.
• I've included only files relevant to the changes described in the PR title and description
• I've created a new branch in my forked repository for this contribution

Code Quality

• My code is relevant to ServiceNow developers
• My code snippets expand meaningfully on official ServiceNow documentation (if applicable)
• I've disclosed use of ES2021 features (if applicable)
• I've tested my code snippets in a ServiceNow environment (where possible)

Repository Structure Compliance

• I've placed my code snippet(s) in one of the required top-level categories:
  • Core ServiceNow APIs/
  • Server-Side Components/
  • Client-Side Components/
  • Modern Development/
  • Integration/
  • Specialized Areas/
• I've used appropriate sub-categories within the top-level categories
• Each code snippet has its own folder with a descriptive name

Documentation

• I've included a README.md file for each code snippet
• The README.md includes:
  • Description of the code snippet functionality
  • Usage instructions or examples
  • Any prerequisites or dependencies
  • (Optional) Screenshots or diagrams if helpful

Restrictions

• My PR does not include XML exports of ServiceNow records
• My PR does not contain sensitive information (passwords, API keys, tokens)
• My PR does not include changes that fall outside the described scope

[ravichandra1998g]

Hello @ChaseMillers

Thanks for your submission. It appears that this pull request contains more files than described in the title. (Contains Incident related files)
Please review and update the pull request to either remove the extra/unintended files or to update the description to be more comprehensive. Ensure your contributions are meaningful and adhere to the project’s standards. [If applicable: You can create a new branch on your forked repository to avoid accidental inclusions of new commits in the future.]. Closing this for now. Once you make additional changes, feel free to re-open this Pull Request or create a new one.