added a few of OpenAPIs in ./src/main/resources

src/main/resources/3.0/api-with-examples.json

src/main/resources/3.0/api-with-examples.yaml

src/main/resources/3.0/callback-example.json

src/main/resources/3.0/callback-example.yaml

src/main/resources/3.0/link-example.json

src/main/resources/3.0/link-example.yaml

src/main/resources/3.0/petstore-expanded.json

src/main/resources/3.0/petstore-expanded.yaml

...esources/3.0/richard_mueller4-MatchinitAPI-1-swagger.json

src/main/resources/3.0/uspto.json

src/main/resources/3.0/uspto.yaml

...in/resources/APIs/1password.com/events/1.0.0/openapi.yaml

...resources/APIs/1password.local/connect/1.3.0/openapi.yaml

...sources/APIs/6-dot-authentiqio.appspot.com/6/openapi.yaml

src/main/resources/APIs/ably.io/platform/1.1.0/openapi.yaml