NEW devel/oy-borgstore

Newer versions of sysutils/borgbackup/2.0 depend on py-borgstore, which
is a key/value store implementation in Python, supporting multiple
backends. With this, borgbackup>=2.0.0b11 can store repo's on sftp
and/or use rclone as storage backend.

HOMEPAGE:
https://github.com/borgbackup/borgstore

DESCR:
A key/value store implementation in Python, supporting multiple
backends.

OK for importing this in devel?