fix bugs and add tests for test function name type

Merge pull request #4 from mattpolzin/feature/gen-swift

Feature/gen swift

Update OpenAPIKit and OpenAPIReflection versions

Add GitHub tests, remove test manifests, turn on test discovery.

Merge pull request #2 from mattpolzin/update-openapi-version

update OpenAPIKit to 0.20.0

Update included playground and README for new OpenAPIKit version.

update to OpenAPIKit 0.9.0, add exports for OpenAPIKit and JSONAPI

update playground example

bump OpenAPIKit version

update OpenAPIKit version, fix playground pages.