Alpha version of SPDX Java Tools supporting the SPDX Spec version 3

This is an Alpha quality release of the SPDX Java RDF store which supports the SPDX Spec version 3

Although stable, it is not quite ready for production.

If you are using this package as a library, please note that there are several breaking changes.

For description of the migration and changes, please see the upgrading document in the SPDX Java Library repo.