* Added Google benchmarks (and gtests)
* Separate benchmark CMakeLists.txt to its own file
* Move output directory to target just flatbenchmark
* Reduced from encoding 210ns -> 188ns
* store size_ as uoffset_t
* fixed windows c4267 warning
* Added Google benchmarks (and gtests)
* Default building benchmarks to OFF as it requires c++11
* Separate benchmark CMakeLists.txt to its own file
* Move output directory to target just flatbenchmark
