Use cookiecutter for templating

The man idea is to use [cookiecutter](cookiecutter.readthedocs.io/) as the templating tool. Project structure should be the one defined in [pyansys/template repo](https://github.com/pyansys/template). An already built cookiecutter template can be found in the [ansys/ansys-api-template](https://github.com/ansys/ansys-api-template).