* Adds v2 spec additionalproperties examples, adds v3 spec nulllable model example, updates samples
* Remaining samples updates
* Adds csharp generator update to handle models with multilevel parent types, which works for the AdditionalPropertiesObject model, samples updated
* Adds two models to the v2.0 spec, uses examples as defaults in python client
* Adds array default and type_holder_default and type_holder_example tests
* Re-generated python security client with ./bin/security/python-petstore.sh
* Changes comment text, rebased master
* Updates client + server samples
* Adds missing samples updates
* Changes python client to look for true or false with booleans in toDefaultValue
* Changes boolean casting to use Boolean.valueOf
* Adds deserialization fix for python tests
* Changes Mock to namedtuple in python deserialization tests
* Actually remove unittest.mock
* update samples
* remove string boolean map spec
* add logic to skip array alias being generated as model
* fix alias to array
* remove unused ruby files
* remove unused ruby (oas3) files
* unalias response schema
* fix NPE when no model defined
* fix ruby openapi3 script
* update samples
* add global openapi, schemas for unaliasing
* minor code cleanup/refactoring using globalSchemas
* Revert "minor code cleanup/refactoring using globalSchemas"
This reverts commit 20a2bbc6fc4267a0e0768dcf5f15d4194ce9647b.
* 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
