- change AP firewall back to script, now using netfilter (requ raspbian 10)

- install netfilter packages on AP nodes

roles/ntopng/vars/os_Raspbian_11.yml

@@ -0,0 +1,15 @@
+---
+ntopng_dependency_packages:
+  - autoconf
+  - shtool
+  - libtool
+  - libcurl4-openssl-dev
+  - libsqlite3-dev
+  - libmariadbclient-dev
+  - libreadline-dev
+  - libxml2-dev
+  - libglib2.0-dev
+  - redis
+  - libmaxminddb-dev
+  - libjson-c-dev
+  - git