Add FindTBB.cmake
Add FindTBB.cmake

The MIT License

Copyright (c) 2011 Hannes Hofmann

FindTBB.cmake can be found at https://code.google.com/p/findtbb/
Written by Hannes Hofmann <hannes.hofmann _at_ informatik.uni-erlangen.de>
Improvements by Gino van den Bergen <gino _at_ dtecta.com>,
  Florian Uhlig <F.Uhlig _at_ gsi.de>,
  Jiri Marsik <jiri.marsik89 _at_ gmail.com>

szellmann/visionaray,ukoeln-vis/ctpperf,ukoeln-vis/ctpperf,szellmann/visionaray