* 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
* fix(ktor-client): do not add jsonBlock if using kotlinx-serialization
* update existing templates
* add new kotlin-jvm-ktor-kotlinx_serialization
* add new kotlin-jvm-ktor-kotlinx_serialization to samples-kotlin-client.yaml pipeline
actually, kotlin-jvm-ktor-gson was duplicated, so I'm replacing the second one by kotlin-jvm-ktor-kotlinx_serialization
* extra FILES entry in the template
* enumUnknownDefaultCase=false for now since it's currently broken for ktor + kotlinx_serialization
* use openapi 3 petstore
