Added support for ARM NEON, lots of changes in openair1 and some in cmake_targets

cmake_targets/CMakeLists.txt

cmake_targets/lte-simulators/CMakeLists.txt

openair1/PHY/CODING/3gpplte.c

openair1/PHY/CODING/3gpplte_sse.c

openair1/PHY/CODING/3gpplte_turbo_decoder_sse_16bit.c

openair1/PHY/CODING/3gpplte_turbo_decoder_sse_8bit.c

openair1/PHY/CODING/Makefile

openair1/PHY/CODING/ccoding_byte_lte.c

openair1/PHY/CODING/defs.h

openair1/PHY/CODING/viterbi.c

openair1/PHY/CODING/viterbi_lte.c

openair1/PHY/LTE_ESTIMATION/filt96_32.h

openair1/PHY/LTE_ESTIMATION/freq_equalization.c

openair1/PHY/LTE_ESTIMATION/lte_dl_channel_estimation.c

openair1/PHY/LTE_ESTIMATION/lte_est_freq_offset.c

openair1/PHY/LTE_ESTIMATION/lte_sync_timefreq.c

openair1/PHY/LTE_ESTIMATION/lte_ue_measurements.c

openair1/PHY/LTE_ESTIMATION/lte_ul_channel_estimation.c

openair1/PHY/LTE_REFSIG/lte_dl_cell_spec.c

openair1/PHY/LTE_TRANSPORT/dci.c