Move single ansible playbook to ansible directory

Make ansible playbook properly- use ansible-galaxy init commands.

ansible/arch_ufw/tasks/main.yml

@@ -0,0 +1,16 @@
+---
+# UFW
+- name: Ensure UFW installed
+  community.general.pacman:
+    name: ufw
+    state: present
+  become: yes
+- name: Enable UFW
+  community.general.ufw:
+    state: enabled
+  become: yes
+- name: Allow SSH
+  community.general.ufw:
+    rule: allow
+    name: ssh
+  become: yes