pre-knocean merge

What's Changed

• rename by @cmungall in #2
• prep for new linkml release by @cmungall in #5
• Fixing range of about by @cmungall in #8
• example of extending model for mappings by @cmungall in #6
• KGCL prototype library and webapp by @ckindermann in #9
• Some change objects for language tags by @cmungall in #12

New Contributors

• @cmungall made their first contribution in #2
• @ckindermann made their first contribution in #9

Full Changelog: https://github.com/cmungall/knowledge-graph-change-language/commits/v0.1.0