fflush stdout after each scenario for line-buffered pipelining;
refactor csv_header_count into sym_header_printed, asym_header_printed, and pqasym_header_printed;
move SAKKE tests to precede PQ tests;
rename bench_stats_sym_check() to bench_stats_check();
add bench_stats_asym_finish_ex() accepting a "desc_extra" arg, and use it to disambiguate otherwise-homonymous SAKKE runs;
fix bench_aesecb_internal() to not check time (syscall) for every 3 blocks processed.
89182b829f