* add initial openapi config and java generated files
* add java implementation for adding generator version
* regenerate sample client files
* remove tabs
* only show generated version if build info exists
* set build info for batch generation
* update generator doc for new global flag
* use existing property for generator version
* update templates to include generator version
* update templates for better generator version syntax
* revert undesired changes
* regenerate samples for openapi client
* update templates to correct formatting/newlines
* correct description text and add to usage doc
* add generator cli option for all codegen types
* use more concise version info; update existing codegens to support new prop
* correct wrong prop reference
* add initial test coverage for new prop
* update last (scala) templates with new prop
* update samples after upstream merge
* use consistent version output
* use better sample project id/name
* revert using option for generator version in templates
* Content mediatype is hardcoded in api.mustache #11511
* Generate Samples
* OAS3 incorrect data type when providing a default value #11367
* Generate Samples
* Fix JsonTypeName annotation handling in Java and JavaSpring
* Generate Samples
* getIsClassnameSanitized: use null safe equals
* Update the bean validation to use version 2.0. For a reason I don't know, it was not working anymore with version 1.
* better format
Co-authored-by: William Cheng <wing328hk@gmail.com>
