Vendor things

third-party/vendor/thread_local/README.md

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+thread_local
+============
+
+[![Build Status](https://github.com/Amanieu/thread_local-rs/actions/workflows/ci.yml/badge.svg)](https://github.com/Amanieu/thread_local-rs/actions) [![crates.io](https://img.shields.io/crates/v/thread_local.svg)](https://crates.io/crates/thread_local)
+
+This library provides the `ThreadLocal` type which allow a separate copy of an
+object to be used for each thread. This allows for per-object thread-local
+storage, unlike the standard library's `thread_local!` macro which only allows
+static thread-local storage.
+
+[Documentation](https://docs.rs/thread_local/)
+
+## Usage
+
+Add this to your `Cargo.toml`:
+
+```toml
+[dependencies]
+thread_local = "1.1"
+```
+
+## Minimum Rust version
+
+This crate's minimum supported Rust version (MSRV) is 1.59.0.
+
+## License
+
+Licensed under either of
+
+ * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+ * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any
+additional terms or conditions.