Vendor things

third-party/vendor/yansi/README.md

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+# yansi
+
+[![Build Status](https://travis-ci.org/SergioBenitez/yansi.svg?branch=master)](https://travis-ci.org/SergioBenitez/yansi)
+[![Current Crates.io Version](https://img.shields.io/crates/v/yansi.svg)](https://crates.io/crates/yansi)
+[![Documentation](https://docs.rs/yansi/badge.svg)](https://docs.rs/yansi)
+
+A dead simple ANSI terminal color painting library for Rust.
+
+```rust
+use yansi::Paint;
+
+print!("{} light, {} light!", Paint::green("Green"), Paint::red("red").underline());
+```
+
+See the [documentation](https://docs.rs/yansi/) for more.
+
+# Why?
+
+Several terminal coloring libraries exist ([`ansi_term`], [`colored`],
+[`term_painter`], to name a few), begging the question: why yet another? Here
+are a few reasons:
+
+  * This library is _much_ simpler: there are three types!
+  * Unlike [`ansi_term`] or [`colored`], _any_ type implementing `Display`
+    or `Debug` can be stylized, not only strings.
+  * Styling can be enabled and disabled globally, on the fly.
+  * Arbitrary items can be [_masked_] for selective disabling.
+  * Styling can [_wrap_] any arbitrarily styled item.
+  * Typically only one type needs to be imported: `Paint`.
+  * Zero dependencies. It really is simple.
+  * The name `yansi` is pretty short.
+
+All that being said, this library borrows API ideas from the three libraries as
+well as implementation details from [`ansi_term`].
+
+[`ansi_term`]: https://crates.io/crates/ansi_term
+[`colored`]: https://crates.io/crates/colored
+[`term_painter`]: https://crates.io/crates/term-painter
+[_masked_]: https://docs.rs/yansi/#masking
+[_wrap_]: https://docs.rs/yansi/#wrapping
+
+## License
+
+`yansi` is licensed under either of the following, at your option:
+
+ * 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)