Temporary OSPFv3 development commit

filter/filter.h

filter/trie.c

lib/ipv6.c

lib/ipv6.h

nest/a-path.c

nest/rt-attr.c

proto/bgp/attrs.c

proto/bgp/packets.c

proto/ospf/dbdes.c

proto/ospf/hello.c

proto/ospf/iface.c

proto/ospf/lsack.c

proto/ospf/lsalib.c

proto/ospf/lsreq.c

proto/ospf/lsupd.c

proto/ospf/neighbor.c

proto/ospf/ospf.c

proto/ospf/ospf.h

proto/ospf/packet.c

proto/ospf/rt.c