Update pf config to support metadata address and localhost simultaneously (#114)

Author: patricksanders

extras/macos/etc/pf.conf

@@ -27,3 +27,4 @@ dummynet-anchor "com.apple/*"
 anchor "com.apple/*"
 load anchor "com.apple" from "/etc/pf.anchors/com.apple"
 load anchor "redirection" from "/etc/pf.anchors/redirection"  # added by weep
+pass on lo0 all  # added by weep