Changes:
- updated libbsc to v3.3.5 (thanks to @IlyaGrebnov)
- fixed: set kanzi to use a single thread instead of half of available threads in lzbench v2.0 (thanks to @tansy)
- fixed: Piping through tee doesn't work (issue #138)
- improvement: Return exit code > 0 to shell in case of failure of one of codecs