* add group parameter support to php template
* more update for group parameter
* fix call to protect function
* fix missing $
* update based on feedback
* create fake endpoint to test group parameters
* sync fake petstore spec v2, v3
* fix php doc for group parameters
* update petstore samples
* update fake petstore spec v2
* update petstore samples
* fix spec and update samples
* support form-data file MIME `name` parameter
* update test spec and Go client for form-data file name
* update samples for ensure-up-to-date
* update mustache template
* update samples for Go client
* improve assignment location
* update samples
* fix schema/definition name as 'file'
* update samples
* Trigger CI due to previous Shippable race condition
* add fix with toModelName(openAPIType)
* update tests for file schema/definition name
* Update 3.0 test spec
* update samples
* update samples for jaxrs-cxf
* Trigger CI due to previous Shippable race condition
* add back explode