✨ Updates cookiecutter with non-invasive Makefile and prepare for dynamic-services

[pcrespov]

What do these changes do?

This PR improves the layout of the cookiecutter to produce an integration code that less intrusive and prepares the ground to support dynamic-services.

Based on the simplified .osparc setup done in https://github.com/ITISFoundation/IEC62209-service/tree/main/.osparc, we add the following changes:

• Moves the Makefile to .osparc/Makefile. This avoids colliding with a Makefile that the user might already have in-place
• Simplified Makefile recipes. Most of the functionality should go in ooil
• Uses dockerized yq. Only dependencies are makefile and docker

NOTE: for the moment the new Makefile will co-exist with the current Makefile until all functionality in the former are replaced.

Related issue/s

• Part of https://github.com/ITISFoundation/osparc-issues/issues/942

How to test

make devenv
source .venv/bin/activate
make play