v0.3.0

What's Changed

• Removing unused by @cmungall in #56
• Add poetry.lock, edit tox.ini and formatted files using tox -e lint by @hrshdhgd in #57
• Commented or changed tests to pass CURIEs only by @hrshdhgd in #60
• KGCL v0.3.0rc2 compliance test by @hrshdhgd in #61
• Update KGCL to version 0.3.0 by @hrshdhgd in #62

Full Changelog: v0.2.0...v0.3.0