Minor bsaarchive clean-up and optimization.
Minor bsaarchive clean-up and optimization.

The std::find() for mLookupName was showing up in the profiler in a debug build; changing it to std::lower_bound() made it take about a 1/10th as long. Will help a little bit with start-up times. I verified with std::is_sorted() that mLookupName is sorted.

afritz1/OpenTESArena