add git hooks and rewrite example play

.gitattributes

.gitignore

.gitlab-ci.yml

LICENSE

README.md

development.ini

extensions/git/vault-clean.sh

extensions/git/vault-diff.sh

extensions/git/vault-smudge.sh

extensions/setup/install_git_hook.sh

extensions/setup/required_packages.txt

extensions/setup/setup.sh

group_vars/all/locale.yml

group_vars/all/openssh.yml

group_vars/all/pacman.yml

group_vars/all/sudo.yml

group_vars/examplePlay/pacman.yml

group_vars/postgresql/postgresql-password-plain.yml

group_vars/postgresql/postgresql-password.yml

group_vars/postgresql/postgresql.yml