Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

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+# `console`
+
+[![Build Status](https://github.com/console-rs/console/workflows/CI/badge.svg?branch=master)](https://github.com/console-rs/console/actions?query=workflow%3ACI)
+[![Crates.io](https://img.shields.io/crates/d/console.svg)](https://crates.io/crates/console)
+[![License](https://img.shields.io/github/license/console-rs/console)](https://github.com/console-rs/console/blob/master/LICENSE)
+[![rustc 1.48.0](https://img.shields.io/badge/rust-1.48%2B-orange.svg)](https://img.shields.io/badge/rust-1.48%2B-orange.svg)
+[![Documentation](https://docs.rs/console/badge.svg)](https://docs.rs/console)
+
+**console** is a library for Rust that provides access to various terminal
+features so you can build nicer looking command line interfaces.  It
+comes with various tools and utilities for working with Terminals and
+formatting text.
+
+Best paired with other libraries in the family:
+
+* [dialoguer](https://docs.rs/dialoguer)
+* [indicatif](https://docs.rs/indicatif)
+
+## Terminal Access
+
+The terminal is abstracted through the `console::Term` type.  It can
+either directly provide access to the connected terminal or by buffering
+up commands.  A buffered terminal will however not be completely buffered
+on windows where cursor movements are currently directly passed through.
+
+Example usage:
+
+```rust
+use std::thread;
+use std::time::Duration;
+
+use console::Term;
+
+let term = Term::stdout();
+term.write_line("Hello World!")?;
+thread::sleep(Duration::from_millis(2000));
+term.clear_line()?;
+```
+
+## Colors and Styles
+
+`console` automaticaly detects when to use colors based on the tty flag.  It also
+provides higher level wrappers for styling text and other things that can be
+displayed with the `style` function and utility types.
+
+Example usage:
+
+```rust
+use console::style;
+
+println!("This is {} neat", style("quite").cyan());
+```
+
+You can also store styles and apply them to text later:
+
+```rust
+use console::Style;
+
+let cyan = Style::new().cyan();
+println!("This is {} neat", cyan.apply_to("quite"));
+```
+
+## Working with ANSI Codes
+
+The crate provides the function `strip_ansi_codes` to remove ANSI codes
+from a string as well as `measure_text_width` to calculate the width of a
+string as it would be displayed by the terminal.  Both of those together
+are useful for more complex formatting.
+
+## Unicode Width Support
+
+By default this crate depends on the `unicode-width` crate to calculate
+the width of terminal characters.  If you do not need this you can disable
+the `unicode-width` feature which will cut down on dependencies.
+
+License: MIT