(apigateway): Create HTTP APIs from an OpenAPI specification

### Description

Adding OpenAPI support for HTTP APIs (API Gateway V2).

Reference: https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-open-api.html

### Use Case

It would be great to develop both REST and HTTP API using OpenAPI files (one file per API gateway, of course).

### Proposed Solution

Import the OpenAPI specification per the reference above.

### Other information

_No response_

### Acknowledge

- [X] I may be able to implement this feature request
- [ ] This feature might incur a breaking change

Start with the AWS API Gateway V2 HTTP API OpenAPI import reference linked in the issue, and compare it with the existing REST API OpenAPI behavior in the CDK. The work is done when HTTP APIs can be created from an OpenAPI specification while preserving the existing REST API use case.

Written by the indexing model from the issue text.