add acl config

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7967 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/autoload_configs/acl.conf.xml

+<configuration name="acl.conf" description="Network Lists">
+  <network-lists>
+    <list name="lan" default="allow">
+      <node type="deny" cidr="192.168.42.0/24"/>
+      <node type="allow" cidr="192.168.42.42/32"/>
+    </list>
+
+    <list name="strict" default="deny">
+      <node type="allow" cidr="208.102.123.124/32"/>
+    </list>
+  </network-lists>
+</configuration>
+