feat: add JSON writer

[AngelCastilloB]

Description

We want to remove json-c as dependency in favor of a hand made JSON writer and parser.

Checklist

• I have read followed CONTRIBUTING.md
  • I have added tests
  • I have updated the documentation
  • I have updated the CHANGELOG
• Are there any breaking changes?
  • If yes: I have marked them in the CHANGELOG
• Does this PR introduce any platform specific code?
• Security: Does this PR potentially affect security?
• Performance: Does this PR potentially affect performance?

[github-actions]

MISRA Guideline Compliance Summary

Commit:	740e9eafca14e30c551c2e238fbb1dba5ddcde36
Date:	2024-12-07
Guidelines:	MISRA C 2012
Checking Tool:	Cppcheck
Result:	Compliant ✅

🎉 No MISRA C 2012 Violations Found!

You can download the complete report from: MISRA C Report

[codecov]

Codecov Report

Attention: Patch coverage is 95.05703% with 26 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
lib/src/json/json_writer.c	95.73%	18 Missing ⚠️
lib/src/string_safe.c	90.00%	8 Missing ⚠️

📢 Thoughts on this report? Let us know!