Move extrapackage installation into separate role and make it more flexible

- Introduce `extra_pkgs1` - `extra_pkgs10`
- Introduce `extra_pkgs_bpo1` - `extra_pkgs_bpo10`
- Move package-list from lmn_teacherlaptop into inventory as extra_pkgs1

lmn-client.yml

@@ -72,14 +72,6 @@
     ## Use grub-mkpasswd-pbkdf2 to calculate the password hash:
     grub_pwd: "{{ vault_grub_pwd }}"
     nfs4: false
-    extra_pkgs:
-      - vim
-      - mc
-      - tmux
-      - krb5-user
-      - unattended-upgrades
-      - debconf-utils
-    extra_pkgs_bpo: [] # [ linux-image-amd64 ]
 
     # Wireguad config
     wg_endpoint: "{{ vault_wg_endpoint }}"
@@ -111,7 +103,7 @@
       when:
         - ansible_interfaces | select('search', 'wl.+') | first is defined
         - wlan != none
-
+    - role: lmn_extrapkgs
 
   tasks:
     ## Temporary fixes and quirks: