IMPORTANT: All PRs must be linked to an issue (except for extremely trivial and straightforward changes).

Fixes #2948

Description

• Setup the engine-kmp module
• Core data model
• Migrated and tested CRUD
• Migrated and tested Android sync up and down

Ongoing:

• Start merging smaller changes to the new kotlin-fhir-engine repo https://github.com/ohs-foundation/kotlin-fhir-engine
• Search, depends on Codegen to Generate Search Params kotlin-fhir#75
• Sync for iOS and Desktop

Alternative(s) considered
Have you considered any alternatives? And if so, why have you chosen the approach in this PR?

Type
Migration

Screenshots (if applicable)

Checklist

• I have read and acknowledged the Code of conduct.
• I have read the Contributing page.
• I have signed the Google Individual CLA, or I am covered by my company's Corporate CLA.
• I have discussed my proposed solution with code owners in the linked issue(s) and we have agreed upon the general approach.
• I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the style guide of this project.
• I have run ./gradlew check and ./gradlew connectedCheck to test my changes locally.
• I have built and run the demo app(s) to verify my change fixes the issue and/or does not break the demo app(s).