HealthChain v0.3.0

What's Changed

• Replace the FHIR empty list default with None by @adamkells in #41
• Change python requirements to >=3.8, <3.12 by @jenniferjiangkells in #50
• Add clinical documentation use case by @jenniferjiangkells in #47
• Add Medication and Allergy CDA fields by @adamkells in #51
• Documentation and publishing updates by @jenniferjiangkells in #52

Full Changelog: 0.2.0...0.3.0