change layout for better management

- instead of just `syspkgs` and `srcpkgs` add more lists
  - `appimages`, `flatpkgs` and others as they come up

vars/bitwarden.yml

@@ -0,0 +1,8 @@
+# vim: set filetype=yaml.ansible :
+---
+install_prefix: "{{ default_install_prefix }}"
+install_dir: /opt/appimage/bitwarden
+install_method: flatpak
+dobecome: true
+owner: root
+group: root