GeezerVison

Abstract OpenAPI maps from OpenAPIKit (#44)

## Summary
- Add FeatherOpenAPI-owned ordered map and key abstractions for paths,
schemas, responses, content types, and headers.
- Convert those abstractions to OpenAPIKit types inside FeatherOpenAPI,
so consumers need not import OpenAPIKit30 for map literals.
- Keep YAML generation and serialization in consuming generator targets;
that responsibility remains outside FeatherOpenAPI.

Fix package name (#43)

- fix package name

Fix default operation ID (#41)

- fixes a bug related to default operation id values
- op id defaults to the altered type name if it has `Operation` suffix
- add test coverage to check default values
- updated readme (1.0.0-beta.7)
- fix format & file headers
- avoid empty response header serialization: `headers: {}`
- tests for empty header response serialization fix

Fix schema null default example serialization (#40)

- fix schema null default example serialization

Fix security scheme duplication issue (#39)

- fix security scheme duplication issue
- update readme, prep for release

Fix non-required schema references (#38)

- `.reference(required: false)` now works as expected

Fix tag duplication issue (#37)

- fix tag duplication
- test tag deduplication at document level
- prep work for next release in README.md

Double check repo & dep update (#36)

- text formating
- workflow updates
- bump dep

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Co-authored-by: GErP83 <[email protected]>

Fix DocC gen & readme (#34)

add form content body (#32)