Add ipt-server role with firewall configuration and management

- Created handlers for reloading systemd and restarting firewall services.
- Implemented tasks to ensure the existence of configuration directories and files.
- Deployed host-specific and shared configuration files using templates.
- Added scripts for managing IPv4 and IPv6 firewalls.
- Configured systemd service units for ipt-firewall and ip6t-firewall.
- Enabled and started firewall services on system boot.

roles/ipt-server/handlers/main.yml

@@ -0,0 +1,15 @@
+---
+
+- name: Reload systemd daemon
+  systemd:
+    daemon_reload: true
+
+- name: Restart IPv4 Firewall
+  service:
+    name: ipt-firewall
+    state: restarted
+
+- name: Restart IPv6 Firewall
+  service:
+    name: ip6t-firewall
+    state: restarted