FalloutNewVegas: add FastDecompressNV (xNVSE plugin)

Replaces Fallout: New Vegas's zlib 1.2.1 decompression with modern
alternatives for ~2.75x faster decompression vs stock game.

- libdeflate 1.25 for ESP/ESM form records (single-shot)
- libdeflate 1.25 for 93% of BSA entries (one-shot when full buffer available)
- Chromium-zlib with SSE2/AVX2 SIMD for remaining 7% BSA streaming
- Vectored exception crash logger with stack traces
- INI-configurable performance logging and baseline benchmarking mode
- Compatible with psycho (disable its zlib module) and zlibUpdate

Verified addresses: FalloutNV.exe (Steam 1.4.0.525) and GECK editor.
Requires xNVSE 6.2.0+. Output DLL is zz_FastDecompressNV.dll to ensure
it loads after other zlib mods alphabetically.