fix minor bugs before merging to main branch

• plugin.Plugin has to be changed to plugin.PluginAbstract in wrapper
• design a better run_tool function in wrapper
• change --license {{ cookiecutter.supplementary_files_license }} to proper license in README
• Revise the README with the newest configuration in Makefile
• fix export in Configure the Freva Instance:
• write make dep-install-activate more accurate
• make functional and unit tests make commands in Makefile and in follow, add then as service in CI
• Make a freva-dev image runner command in Makefile
• refactor all commands in Makefile
• also refactor the gitlab CI services
• conftest.py has to be moved to tests dir
• add where= ['src'] under tool.setuptools.packages.find table and add two other attrs packages=find_packages("src") and package_dir={"": "src"} to setup.py

new issue has just been observed:

• because pages service condition holds for main branch, it cannot recognize the master branch as main and as a result, it cannot start the job in master branch. It has to be fixed : https://gitlab.dkrz.de/ch1187/plugins4freva/freva-plugin-template/-/blob/dev/%7B%7Bcookiecutter.plugin_slug%7D%7D/.gitlab-ci.yml?ref_type=heads#L93-95

changed milestone to %Plugin-Template development

added Priority | High Hotfix Sprint Backlog labels

assigned to @k202187

changed the description

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marked the checklist item plugin.Plugin has to be changed to plugin.PluginAbstract in wrapper as completed

marked the checklist item change --license {{ cookiecutter.supplementary_files_license }} to proper license in README as completed

marked the checklist item fix export in Configure the Freva Instance: as completed

marked the checklist item write make dep-install-activate more accurate as completed

marked the checklist item conftest.py has to be moved to tests dir as completed

marked the checklist item because pages service condition holds for main branch, it cannot recognize the master branch as main and as a result, it cannot start the job in master branch. It has to be fixed : https://gitlab.dkrz.de/ch1187/plugins4freva/freva-plugin-template/-/blob/dev/%7B%7Bcookiecutter.plugin_slug%7D%7D/.gitlab-ci.yml?ref_type=heads#L93-95 as completed

mentioned in commit 60e83ed1

marked the checklist item make functional and unit tests make commands in Makefile and in follow, add then as service in CI as completed

marked the checklist item Make a freva-dev image runner command in Makefile as completed

marked the checklist item refactor all commands in Makefile as completed

marked the checklist item also refactor the gitlab CI services as completed

marked the checklist item add where= ['src'] under tool.setuptools.packages.find table and add two other attrs packages=find_packages("src") and package_dir={"": "src"} to setup.py as completed

added In Progress label and removed Sprint Backlog label

marked the checklist item Revise the README with the newest configuration in Makefile as completed

marked the checklist item design a better run_tool function in wrapper as completed

closed with commit 99eec2e8