Create a Hello World module as a starting point

Problem/Motivation

We need to have an easy start point to start coding in project.

Proposed solution

Follow this guide: https://www.drupal.org/docs/creating-custom-modules/step-by-step-tutorial-hello-world
or
Follow this playlist: https://youtube.com/playlist?list=PLpVC00PAQQxFNDfiXn6LH1gOLllGS3hhl&feature=shared