* Issue 1766 Modified mustache files for Go to support nullable in the spec v3.0+; Updated model files running .sh scripts for Go.
* Add "nullable" to fake yaml
* Add sample script for OAS3
* Fix output folder (openapi3)
* Run bin/openapi3/go-petstore.sh
* Update samples
* Update jaxrs-jersey
* Update python and php samples
* Add bin/openapi3/go-gin-petstore-server.sh
* Run bin/openapi3/go-gin-petstore-server.sh
* Update bin/openapi3/go-petstore-server.sh to generate "nullable" samples
* Run bin/openapi3/go-petstore-server.sh
* Fix duplicated `import`
* Add possibility to build and run go service in a container
* Remove tabs
* Update Pet Store server sample
* Add {{{packageName}}} instead of petstore
* Rewrite of Go Client
* Revert to older version of context.Context
* Clean and bulk up concurrency test.
* Correct {{path}} to {{{path}}}
* change custom date type to string.
* Add APIKey authentication
* Correct missing line from resolving conflicts.
Correct missing line from resolving conflicts.
* Issue #3084: add hideGenerationTimestamp option to Go server generator.
* Issue #3084: use hideGenerationTimestamp in go server sample script.
* Update Go server samples.
