Snappy
谷歌2011年开始开发的一款专注于速度的压缩，解压库，速度完胜zlib。
百度的sofa-pbrpc也使用到了。
Snappy v1.1.7, August 24th 2017:
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Improved CMake build support for 64-bit Linux distributions.
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MSVC builds now use MSVC-specific intrinsics that map to clzll.
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ARM64 (AArch64) builds use the code paths optimized for 64-bit processors.
最简单用法：
snappy::Compress(input.data(), input.size(), &output);
snappy::Uncompress(input.data(), input.size(), &output);
where "input" and "output" are both instances of std::string.
This Is A Debug Test!!!
