chore: convert solution file from .sln to .slnx format

[NelsonBN]

Checklist before requesting a review

• I have performed a self-review of my code.
• Implemented tests for new features.
• I tested the features already implemented.
• Added usage examples in the readme.

[Copilot]

Pull request overview

This PR modernizes the solution file by converting from the legacy .sln format to the newer XML-based .slnx format introduced in Visual Studio 2022. The conversion maintains all project references while adopting a cleaner, more maintainable structure.

Key Changes:

• Replaced PowerUtils.Geolocation.sln with PowerUtils.Geolocation.slnx
• Simplified solution structure using XML format
• Both projects (src and tests) are preserved in the new format

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
PowerUtils.Geolocation.slnx	New XML-based solution file containing references to both the main project and test project
PowerUtils.Geolocation.sln	Legacy solution file removed as part of the format migration

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[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
PowerUtils.Geolocation	100%	100%	131	✔
Summary	100% (181 / 181)	100% (70 / 70)	131	✔

[github-actions]

Test Summary

    4 files      4 suites   2s ⏱️
  252 tests   252 ✅ 0 💤 0 ❌
1 008 runs  1 008 ✅ 0 💤 0 ❌

Results for commit a34be45.

[github-actions]

🚀 Stryker report generated 🚀

To more details: https://dashboard.stryker-mutator.io/reports/github.com/TechNobre/PowerUtils.Geolocation/convert-sln-to-slnx-184

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarQube Cloud

[NelsonBN]

🎉 This PR is included in version 2.1.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀