Implement new doc-project template

[jorgepiloto]

💡 Implement doc-project template

Let us simplify the workflow from our documentation team by providing them with a template. This template should contain the minimum files to set up a Sphinx documentation project.

Simple questions like "Select logo [Ansys, PyAnsys]" or "Enable NavBar icons [Yes, No]" could be implemented.

[jorgepiloto]

As said by @Revathyvenugopal162, let us add the PDF rule in both Makefile and make.bat.