* [swift] make some small improvements
* [swift][client] revert model to use allVars
* PostProcessModelProperty with allVars
* PostProcessModelProperty with vars
* [swift] improve objc interoperability
* [swift] fix swift4 for CI to pass
* [swift] improve objc interoperability
* [swift] improve objc interoperability
* Swift - try to fix build
* [swift] remove pods from git
* Expanding CodableHelper with a more customisable dateFormatter and JSON en-/decoder.
* Ran ./bin/swift4-petstore.sh
* Ran ./bin/swift4-petstore-all.sh again after merge from master.
* Ran ./bin/swift4-petstore-all.sh again after building.
* Ran ./bin/swift4-petstore-all.sh again after rebase latest from upstream master.
* sync master, update samples
* Built and ran ./bin/swift4-petstore-all.sh
* Re-adding code which disappeared in rebase from master.
* Fixed test
* [swift] remove old classes
* [swift] introduce result type as response library
* iOS - run petstore samples
* [swift4] add result sample to testing pipeline
* [swift] update docs with result type
* [swift] update result visibility
* [swift] update docs
* Add queue parameter to API
* Apply queue to response function argument
* Update petstore sample
* Update all sample projects
Run ./bin/swift4-all.sh then remove unrelated diff.
* Refactor variable name
Rename queue to apiResponseQueue, because apiResponseQueue is more clear for explaining the context.
* Convert not string enum default value to string by toString.
* Add some test cases for enum's default value.
* Convert string default value to enum var name format.
* sync master, update samples
