Add OpenAPI Generator to IMPLEMENTATIONS.md

[wing328]

Add OpenAPI Generator, which supports both OpenAPI spec v2 and v3.

[chatelao]

Looks correct, same as in my request.

[earth2marsh]

This definitely qualifies as a tool that leverages the spec. My concern is that unlike other implementations in this list, the GitHub organization openapitools is a name that could be confused as an official project. I'd prefer a note added to this entry like, "Note: the openapitools organization is an independent, community project not provided by the OpenAPI Initiative." (or similar)

[wing328]

@earth2marsh thanks for the feedback. I've updated the PR to include the following

Both "OpenAPI Tools" (https://OpenAPITools.org - the parent organization of OpenAPI Generator) and "OpenAPI Generator" are not affiliated with OpenAPI Initiative (OAI)

@ladd@chatelao thanks for reviewing the change

[ackintosh]

This branch has conflicts that must be resolved

👀

[ackintosh]

Looks good to me. ✨

[tnielens]

I just read through the code generation tool list today and was surprised not to find OpenAPITools' openapi-generator, nor swagger-codegen in the list. I have the impression those tools have played an important role in the success of the OpenApi specs.

[MikeRalphson]

Thanks for the PR. We are now in the process of moving from IMPLEMENTATIONS.md to https://tools.openapis.org - the current implementations list will be removed and a note redirecting readers to the new site added. Instructions on listing your projects are contained in https://github.com/OAI/Tooling#how-can-you-help