feat: implement GitLab-CI, linting, better documentation

.ansible-lint

.config/molecule/config.yml

.gitignore

.gitlab-ci.yml

.gitlab/issue_templates/Default.md

.gitlab/merge_request_templates/Default.md

CODE-OF-CONDUCT.md

CONTRIBUTING.md

README.md

ansible.cfg

handlers/main.yml

kudos.txt

meta/main.yml

molecule/README.md

molecule/default

molecule/oracle/converge.yml

molecule/oracle/molecule.yml

molecule/oracle/prepare.yml

molecule/oracle/tests/conftest.py

molecule/oracle/tests/parameter_files/redhat_6_packages.py