Vendor dependencies

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vendor/toml/README.md

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+# toml
+
+[![Latest Version](https://img.shields.io/crates/v/toml.svg)](https://crates.io/crates/toml)
+[![Documentation](https://docs.rs/toml/badge.svg)](https://docs.rs/toml)
+
+A [serde]-compatible [TOML][toml] decoder and encoder for Rust.
+
+For format-preserving edits or finer control over output, see [toml_edit]
+
+[serde]: https://serde.rs/
+[toml]: https://github.com/toml-lang/toml
+[toml_edit]: https://docs.rs/toml_edit
+
+# License
+
+This project is 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 toml-rs by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.