- This flag is always set to 1, furthermore with multiple DMRS symbols
  configuration very recent DMRS containing symbol shall be for channel
  estimation.

Each element is sizeof(int32_t), not sizeof(int32_t *).

Enabling more numerology combinations and 100 MHz support with 3/4 sampling for USRP X300/X310, too.

- focus: defs_nr_UE.h, nr-ue.c, phy_procedures_nr_ue.c, nr_init_ue.c
- removed long-time commented out code
- replaced hardcoded params
- removed unnecessary header inclusions

- replaced eNB naming with gNB

If UE receives retransmission for already decoded PDSCH, it skips decoding and sets ACK directly.
And adding PDSCH decoding stats and printing then every 64 frames for CI purpose

- Added PTRS extraction and estimation for DL
- Added processing for whole slot wrt PTRS estimates
- DLSIM is updated to used -T flag to enable PTRS
- DMRS compensated signal is further compensated with PTRS estimation

This commit contains work done by Eurecom and by Benetel.

remove "pdsch_vars_flp", "pdsch_vars_SI", "pdsch_vars_ra", "pdsch_vars_p" and "pdsch_vars_MCH", use per thread "pdsch_vars" instead