* Objects are represented by `ModelBase.h`, not `Object.h` which does not exist.
* Use correct relative imports for files in the `model` and `api` folders.
* [CppRest] Update cpprest petstore client sample.
* Implement `Object` class to support arbitrary types.
* [CppRest] Update cpprest petstore client sample.
* [CppRest] Add newly generated files to petstore client sample.
* [CppRest] Add `Object` to CMakeLists.