LevelDB-Project-KV

10215300402 朱维清 10222140408 谷杰

Chris Mumford 297e66afc1 Format all files IAW the Google C++ Style Guide. Use clang-format to correct formatting to be in agreement with the [Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html). Doing this simplifies the process of accepting changes. Also fixed a few warnings flagged by clang-tidy. PiperOrigin-RevId: 246350737		pirms 6 gadiem
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memenv.cc	Format all files IAW the Google C++ Style Guide.	pirms 6 gadiem
memenv.h	Add CMake build support.	pirms 7 gadiem
memenv_test.cc	Format all files IAW the Google C++ Style Guide.	pirms 6 gadiem