BadgerV4 support?

[jas4711]

Hi! I help maintain this package for Debian, and we just upgraded badger to v4.8.0 which breaks this package, so I consider to temporarily back out badger support in our nosql packaging until we resolve this. If you could support badger v4.8.0+ natively, that would be great! Maybe add a new badger/V4/ sub-directory?

Thanks,
/Simon

[hslatman]

Thank you for opening the issue, @jas4711.

Support for v4 is part of #53.