Move arch_wireguard to its own role

Wireguard will eventually require more complex configration. Moving to
its own role for that eventual expansion.

ansible/arch_wireguard/tasks/main.yml

@@ -0,0 +1,12 @@
+---
+# Wireguard Configuration
+- name: Ensure wireguard-tools installed
+  community.general.pacman:
+    name:  wireguard-tools
+    state: present
+  become: yes
+- name: Ensure /etc/wireguard directory
+  file:
+    path: /etc/wireguard
+    state: directory
+  become: yes