T: add a mac pdu -> wireshark replay tracer
This tracer takes the traces ENB_MAC_UE_DL_PDU_WITH_DATA and ENB_MAC_UE_UL_PDU_WITH_DATA from a trace file (as generated by the "record" tracer) and sends them in UDP packets correctly formatted for wireshark to dissect them. One unresolved problem I face with my version of wireshark (1.10.6) is that I don't get the frame number, only subframe. See in the code to change the behavior if you use a more recent version of wireshark. You need to properly configure wireshark for it to work. See $OPENAIR_DIR/openair2/UTIL/OPT/README.txt.