OpenAPIDefinitionGetter interface is incorrect

[Airblader]

kube-openapi has two interfaces

type OpenAPIDefinitionGetter interface {
	OpenAPIDefinition() *OpenAPIDefinition
}

type OpenAPIV3DefinitionGetter interface {
	OpenAPIV3Definition() *OpenAPIDefinition
}

However, implementing this doesn't actually work, because they're incorrectly specified. The methods actually need to return the structs directly, not a pointer of the struct, for it to work. Since the generator never actually checks for the interface, but purely for the existence of the method, this goes unnoticed.

The interfaces actually should be declared as

type OpenAPIDefinitionGetter interface {
	OpenAPIDefinition() OpenAPIDefinition
}

type OpenAPIV3DefinitionGetter interface {
	OpenAPIV3Definition() OpenAPIDefinition
}