support deleting packages

docs/vars/optional.yaml

@@ -9,3 +9,7 @@ install_packages:
   - ncdu
   - fish
   - parted
+
+delete_packages:
+  - nano
+  - curl

galaxy.yml

@@ -2,7 +2,7 @@
 
 namespace: uumas
 name: general
-version: 0.1.0
+version: 0.2.0
 readme: README.md
 authors:
   - uumas

roles/packages/tasks/main.yml

@@ -3,4 +3,11 @@
 - name: Install packages
   apt:
     name: "{{ install_packages }}"
+    state: present
     update_cache: yes
+
+- name: Delete packages
+  apt:
+    name: "{{ delete_packages }}"
+    state: absent
+  when: delete_packages is defined