new build-step 32_verify_copied_files: checks if everything from the whonix_gateway/whonix_workstation and whonix_shared actually was correctly copied using diff.
Whonix second, optional, extra firewall:
- added configuration file whonix_workstation/etc/whonix_firewall.d/10_default
- added support for whonix_workstation/usr/local/bin/whonix_firewall .d-style configuration files