Add statistics in the ms and tbf level.

Adds DL throughput in show ms imsi <imsi_value>.
Adds the number of coding schemes counter and rlc nacked counter at TBf level.

Change-Id: Ia95b0404989b00db0e7ba416bc40d09ef41fde1c
diff --git a/src/gprs_rlcmac_meas.cpp b/src/gprs_rlcmac_meas.cpp
index 5a2e38e..d6bbc19 100644
--- a/src/gprs_rlcmac_meas.cpp
+++ b/src/gprs_rlcmac_meas.cpp
@@ -179,6 +179,8 @@
 	if (elapsed < 128)
 		return 0;
 
+	tbf->m_bw.dl_throughput = (tbf->m_bw.dl_bw_octets/elapsed);
+
 	LOGP(DRLCMACMEAS, LOGL_INFO, "DL Bandwitdh of IMSI=%s / TLLI=0x%08x: "
 		"%d KBits/s\n", tbf->imsi(), tbf->tlli(),
 		tbf->m_bw.dl_bw_octets / elapsed);