win: add script to disable WinGet telemetry #254

This commit implements functionality to disable telemetry in WinGet by
modifying its JSON configuration files.

Other supporting changes:

- Create new script to disable WinGet telemetry collection
- Extract JSON property setter from VSCode script into a reusable
  function
- Rename function parameters for improved clarity and consistency
- Enhance code comments for better documentation and maintainability
- Improve log message output when setting JSON keys
- Use environment variable expansion when modifying JSON files for
  simpler and consistent usage

Author: undergroundwires