493-Make project setup optional

[lyashevska]

Description

• I have read the contribution guidelines
• This update is in line with what is recommended in the Python chapter of the Guide
• All user facing changes have been added to CHANGELOG.md

Related issues:

• Ask question to include project_setup.md  #493

Install the requirements

cd $(mktemp -d --tmpdir py-tmpl-XXXXXX)
pip install pipx
pipx install copier

Test 1:

Step-1:
Run the command below and say 'yes' to contributing guideline question.

copier copy --vcs-ref 493-project-setup https://github.com/nlesc/python-template test_yes

Step-2:
Run the command below and say 'no'.

copier copy --vcs-ref 493-project-setup https://github.com/nlesc/python-template test_no

What to check:
You should see the files below only when you say 'yes':

README.md should contain a reference to project setup instructions.
project_setup.md

[fdiblen]

Thank you @lyashevska. it looks good, please fix the conflicts before merging.

[lyashevska]

We decided to keep project_setup.md for all profiles. we refer to this document in README.md and it will be shipped with the package.