Show public key as a qrcode

src/freedombone-controlpanel-user

@@ -434,6 +434,10 @@ function show_gpg_key {
     dialog --title $"My PGP/GPG Key" \
            --backtitle $"Freedombone User Control Panel" \
            --msgbox $"Email Address: $MY_EMAIL_ADDRESS\\n\\nKey ID: $GPG_ID\\n\\nFingerprint: $GPG_FINGERPRINT\\n\\nCreated: $GPG_DATE" 12 70
+    clear
+    echo $"Your GPG/PGP public key:"
+    gpg --armor --export "$GPG_ID" | qrencode -t UTF8
+    any_key
 }
 
 function show_full_gpg_key {