* Explicitly define `mode` in relevant tasks.
* Explicitly define the `nginx` `apt_repository` filename in Debian based distros.
* Building OpenSSL from source should now work properly in CentOS 8.
* Added variable nginx_linux_families: ['Debian', 'RedHat', 'Suse']
* Added variable nginx_bsd_systems: ['FreeBSD', 'NetBSD', 'OpenBSD', 'DragonFlyBSD', 'HardenedBSD']
* Handler started only in "not ansible_check_mode" to avoid --check failure when service hes not been installed yet
* Installation of Linux moved to install-oss-linux.yml
* Installation of BSD moved to install-oss-bsd.yml
* File setup-freebsd.yml deleted
* Add support to the role for RHEL 8 and Alpine Linux
* Add NGINX Open Source support for Alpine Linux
* Add NGINX Open Source support for SLES 15
* Update supported platforms matrix