add config to java to disable ApiModel annotations

[brockwmills]

add config option to the base Java generator to disable the @ApiModel and @ApiModelProperty annotations add groovy-jackson generator

PR checklist

• [x] Read the contribution guidelines. - done
• [x] Ran the shell script under ./bin/ to update Petstore sample so that CIs can verify the change. (For instance, only need to run ./bin/{LANG}-petstore.sh and ./bin/security/{LANG}-petstore.sh if updating the {LANG} (e.g. php, ruby, python, etc) code generator or {LANG} client's mustache templates). Windows batch files can be found in .\bin\windows\. - done
• [x] Filed the PR against the correct branch: 3.0.0 branch for changes related to OpenAPI spec 3.0. Default: master. - done
• [ ] Copied the technical committee to review the pull request if your PR is targeting a particular programming language. - no one for java/groovy

Description of the PR

Resolve Issue #7430 - optionally suppress ApiModel annotations from the generated Java and Spring models Adds a groovy generator that uses jackson and does things like enums properly