add genome build hg38

[zmiimz]

add option to report variants in genome build hg38 coordinates

[AshutoshDishagat]

Hello! 👋

I’m Ashutosh, and I’m new to open source contributions. I’d like to work on this issue as part of my learning journey, with the goal of preparing for GSoC 2025. Could you please provide any additional context or guidelines on how I can get started?

Thank you for the opportunity, and I look forward to contributing! 😊