oaisim parameter -y is now UE rx antennas
minor fixes to unitary sims

This reverts commit 3f20ce7b.

it was mistakenly pushed to develop

set transmission mode in phy_config_dedicated_[UE|eNB] after RRCConnectionReconfiguration(eNB) and RRCConnectionReconfigurationComplete(UE)

add ue_TransmissionMode in RrcConfigurationReq

added ue_transmission_mode and nb_antenna_ports to eNB config file

transmisison mode gets set with RRCReconfiguration

The T has 2 processes: the tracee and the local tracer
if the tracee dies (segfault or whatever) the tracee
may still be running.

So there is a third process that monitors those two others
and kill everything when one dies.

The problem is that this third process has to be the parent
of the two others. That makes debugging the tracee with gdb
impossible. This new option disables the third monitor process.

Th struct SamplesPacket is a type declaration. It is not defined
in memory and thus samplesCount can't be declared static.
Transform it to true cpp static variable class as this is c++ source.

plus some cleanup here and there

usrp_lib: setting master clock rate to 30.72 and filter to 20MHz for all cases to improve noise figure and channel response

UHD interfacing (master clock 30.72, bandwidths on 5/10/20 @ 20 MHz), RX gain calibration back to normal.