1. in dlsim.c: now we check for the receiver type and, if SIC,  proceed through encoding, modulation, LLR compuattion and decoding
of the decoded TB0.
2. Implementing routines for vector-vector multiplication and vector-vector subtraction
3. Adding some printouts for debuging purposes.
4. New functions: modulation_SIC, dlsch_qpsk_llr_SIC
5. In phy_scope.c: changing llr plotting: now for the length of coded_bits_per_cw.

Still need to caliibrate shifts -J.

Fixing new modulation tables for TM4 and TM6. Now all modulation orders and combinations work and the maginutes are at  appropriate level.

Streams must have the same shift, otherwise error floor. O
This reverts commit dbf587a5.

  avg_1[0] = avg_1[0] + avg_1[1];
Diff per-layer shift

Undoing previos commit. Previous commit is kept to generate TM4 PCE AWGN plots with the right precoder.

To be reverted after.

  avg_0[0] = avg_0[0] + avg_0[1];
  avg_1[0] = avg_1[0] + avg_1[1];
  avg_0[0] = max (avg_0[0], avg_1[0]);
  avg_1[0] = avg_0[0];

avg_1[0] = max(avg_1[0],avg_1[1]);

avg_1[0] = max(avg_0[1],avg_1[1]); taking this into account in correlation.

2) Fixing bug in mrc_TM4 - removing loop over tx antennas.

Fixing bug in passing arguments to dlsch_dual_stream_correlation, introducing dlsch_dual_stream_correlation_opposite

Revert "Experimanetal change in dlsch_channel_commensation_TM34. Will not work for more than 2 antennas."

This reverts commit cbd30e62.

Testing.

Changing names of output files in dlsim respectiively.

1. Fixing a bug in dlsch_channel_level_TM56.
avg128D = _mm_setzero_si128() must be done inside the rx_antennas loop and not before

2. Cleaning up code in dlsch_demodulation.c

3. Offsets for TM5 and TM6 still must be validated.

4. Right now IA and I-UA receivers for TM4 have the same offset -
validate if any additional penalty/gain is needed.

5. Shortened file names in dlsim.c since matlab can read only 63-characters file names.

6. Tested: TM4 U2 -gS perfect CE works fine for EESM and MIESM abstraction (MCS 4 MSE= 0.007 dB on both streams).

Validating mcs-dependent shift.

Passing 2 avrage channel lvel and not max how it was done before.
Continuing with calibration.

TM4 and verify if any additional gain/penatly is needed.