Add .editorconfig file (#6307)

.editorconfig

.gitlab-ci/terraform.yml

.gitlab-ci/vagrant.yml

Dockerfile

_config.yml

...v/ansible/templates/glusterfs-kubernetes-endpoint.json.j2

...netes-pv/ansible/templates/glusterfs-kubernetes-pv.yml.j2

...ib/vault/roles/vault/tasks/bootstrap/start_vault_temp.yml

contrib/vault/roles/vault/tasks/bootstrap/sync_secrets.yml

contrib/vault/roles/vault/tasks/shared/check_etcd.yml

contrib/vault/roles/vault/tasks/shared/check_vault.yml

contrib/vault/roles/vault/tasks/shared/create_role.yml

contrib/vault/roles/vault/tasks/shared/gen_userpass.yml

contrib/vault/roles/vault/templates/http-proxy.conf.j2

inventory/sample/group_vars/etcd.yml

...ntainerd/templates/apt_preferences.d/debian_containerd.j2

roles/container-engine/containerd/vars/debian.yml

roles/container-engine/containerd/vars/ubuntu-amd64.yml

roles/container-engine/docker/vars/debian.yml

roles/container-engine/docker/vars/ubuntu-amd64.yml