Vendor dependencies

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vendor/remove_dir_all/README.md

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+# remove_dir_all
+
+[![Latest Version](https://img.shields.io/crates/v/remove_dir_all.svg)](https://crates.io/crates/remove_dir_all)
+[![Docs](https://docs.rs/remove_dir_all/badge.svg)](https://docs.rs/remove_dir_all)
+[![License](https://img.shields.io/github/license/XAMPPRocky/remove_dir_all.svg)](https://github.com/XAMPPRocky/remove_dir_all)
+
+## Description
+
+A reliable implementation of `remove_dir_all` for Windows. For Unix systems
+re-exports `std::fs::remove_dir_all`.
+
+```rust,no_run
+extern crate remove_dir_all;
+
+use remove_dir_all::*;
+
+fn main() {
+    remove_dir_all("./temp/").unwrap();
+}
+```