added basic table skeleton

filter.nft

@@ -0,0 +1,17 @@
+#!/usr/bin/nft
+flush ruleset
+
+table ip filter {
+	chain in {
+		type filter hook input priority filter; policy drop;
+		ct state invalid drop;
+		ct state {related,established} accept;
+	}
+	chain forward {
+		type filter hook forward priority filter; policy drop;
+	}
+
+	chain out {
+		type filter hook output priority filter; policy drop;
+	}
+}