Extend cstring api

[dreamer-coding]

Fossil XSDK Pull Request

Description

Cstring API has been extended to include safe secure versions of the existing API to protect against buffer overflow, string stream extended, both classes updated to include new API functionality.

Testing

New test cases via Fossil Test

Checklist

• Code follows the project's coding standards.
• Tests have been added or updated to cover the changes.
• Documentation has been updated to reflect the changes.
• The code has been reviewed by team members.
• All checks and tests pass.
• The license header and notices are updated where necessary.

License

This project is licensed under the Mozilla Public License - see the LICENSE file for details.