add/modify swome comments

    - if [ $CLANG_NUM -eq 1 ]; then sanitizer_type="MemorySanitizer"; elif [ $CLANG_NUM -eq 2 ]; then sanitizer_type="AddressSanitizer"; elif [ $CLANG_NUM -eq 3 ]; then sanitizer_type="UndefinedBehaviorSanitizer"; else echo "Wrong CLANG_NUM $CLANG_NUM given!"; exit 1; fi

    # ignore exit codes, instead search in the report for errors

    # run encoder and decoder with 20ms renderer framesize first, use reference creation mode

    - python3 -m pytest $SELF_TEST_PRM_FILE -v --update_ref 1 -m create_ref --html=report-20ms.html --self-contained-html --junit-xml=report-junit-20ms.xml --testcase_timeout=$testcase_timeout --ref_encoder_path ./IVAS_cod --ref_decoder_path ./IVAS_dec || exit_code20=$?

    # run with high enough tolerance to have no failures due to non-BE -> the only detected failures will be crashes from the sanitizers

    # for 10ms and 5ms renderer framesize, we only need to run the decoder part as renderer framesize is a decoder-only option

    # set tolerance very high do ignore any BE differences due to the different renderer framesizes, those can appear due to the limiter being active

    # we are only interested in runtime errors from the sanitizers and ignore the diffs

    - python3 -m pytest $SELF_TEST_PRM_FILE -v --html=report-5ms.html --self-contained-html --junit-xml=report-junit-5ms.xml --dut_fr 5 --decoder_only --abs_tol 100000 || exit_code5=$?

    - python3 -m pytest $SELF_TEST_PRM_FILE -v --html=report-10ms.html --self-contained-html --junit-xml=report-junit-10ms.xml --dut_fr 10 --decoder_only --abs_tol 100000 || exit_code10=$?