chore: import upstream snapshot with attribution

.gitignore

@@ -0,0 +1,68 @@
+.*
+*~
+bazel-*
+build*
+bin/*
+lib/*
+var/*
+venv*
+tests/integration/conf/*
+tests/de_integration/conf/*
+**/__pycache__/*
+tests/bench/log/*
+tests/integration/integration
+tests/integration/log
+tests/integration/*.log
+tests/de_integration/log
+tests/de_integration/*.log
+!.git*
+!.clang-format
+!.clang-tidy
+!.circleci
+!.drone.yml
+sdk/python/dist/
+compile_commands.json
+dist
+html
+*.lcov.info
+
+# Compiled extension modules must never live in the source package: they are
+# built by CMake and installed into the wheel. A stray copy left here gets
+# bundled verbatim by scikit-build's wheel.packages and breaks the wheel
+# (e.g. a stale binary with the wrong macOS deployment target).
+python/zvec/*.so
+python/zvec/*.dylib
+python/zvec/*.pyd
+
+# Dependencies
+/node_modules
+
+# Production
+/build
+
+# Generated files
+.docusaurus
+.cache-loader
+
+# Misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+allure-*
+
+!build_android.sh
+!build_ios.sh
+
+# congfig
+doc/
+config/
+examples/python/
+examples/c_api/
+logs/