[CODE] devel: add plantuml support

tasks/devel-Debian.yml

@@ -12,6 +12,15 @@
       vars:
         packages:
           - visual-studio-code
+    - name: vscode - Basics - Additional dependencies
+      become: yes
+      package:
+        name: "{{ packages }}"
+        state: present
+      vars:
+        packages:
+          - plantuml
+          - graphviz
     - name: vscode - Basics - Copy global settings
       copy:
         src: "{{ role_path }}/files/vscode-settings.json"