Oakvar

- Added `ov license` command which shows license information.

- Added T2T genome support. `hs1` is T2T genome. For example, `ov run input.vcf --genome hs1`.

This is a significant release. OakVar goes Python API. See the details at https://rkimoakbioinformatics.github.io/oakvar/api/main/

Also, brand new GUI interface if your OakVar version is from a few months ago or before.