- add netmap-libpcap

- add netmap (FreeBSD header files need to be updated with this)
- move prototype perl scripts to prototype/ folder
- create basic structure for sipcap app (no code yet)

netmap-libpcap/pcap-dbus.h

@@ -0,0 +1,2 @@
+pcap_t *dbus_create(const char *, char *, int *);
+int dbus_findalldevs(pcap_if_t **devlistp, char *errbuf);