Added bugbot role

Signed-off-by: Morten Linderud <morten@linderud.pw>

roles/bugbot/defaults/main.yml

+---
+irc_host: 'chat.freenode.net'
+irc_port: '6697'
+irc_channel: '#archlinux-bugs'
+bugbot_admins:
+  - keenerd
+  - falconindy
+  - Foxboron

roles/bugbot/files/bugbot.service

+[Unit]
+Description=The official Arch Linux IRC bugbot
+
+[Service]
+EnvironmentFile=/srv/bugbot/env
+ExecStart=/srv/bugbot/bugbot.py
+Restart=on-failure
+ProtectSystem=full
+DynamicUser=yes
+
+[Install]
+WantedBy=default.target

roles/bugbot/handlers/main.yml

+---
+
+- name: daemon reload
+  command: systemctl daemon-reload

roles/bugbot/tasks/main.yml

+---
+
+- name: install bugbot utilities
+  pacman: name=python-irc,python-beautifulsoup4,python-lxml state=present
+
+- name: clone bugbot source
+  git:
+    repo: https://gitlab.archlinux.org/archlinux/bugbot.git
+    dest: /srv/bugbot
+
+- name: install env file
+  template: src=bugbot.j2 dest=/srv/bugbot/env owner=root group=root mode=0600
+
+- name: install bugbot systemd service
+  copy: src=bugbot.service dest=/etc/systemd/system/bugbot.service
+  notify:
+    - daemon reload
+
+- name: start and enable bugbot service
+  service: name="bugbot.service" enabled=yes state=started