Add packet_build.cpp support imitate_tcp_packet() / imitate_udp_packet()

include/stellar/packet.h

@@ -24,15 +24,12 @@ enum packet_direction packet_get_direction(const struct packet *pkt);
 
 enum packet_action
 {
-    PACKET_ACTION_FORWARD = 0, // must be zero
+    PACKET_ACTION_FORWARD = 0,
     PACKET_ACTION_DROP = 1,
-    PACKET_ACTION_DEFER = 2, // TODO
 };
 void packet_set_action(struct packet *pkt, enum packet_action action);
 enum packet_action packet_get_action(const struct packet *pkt);
 
-uint64_t packet_get_session_id(const struct packet *pkt);
-
 const char *packet_get_raw_data(const struct packet *pkt);
 uint16_t packet_get_raw_len(const struct packet *pkt);