Initial vendor packages

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

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+# <img src="https://jam1.re/img/rust_owo.svg" height="100"> Colors
+[![Current Crates.io Version](https://img.shields.io/crates/v/owo-colors.svg)](https://crates.io/crates/owo-colors)
+[![docs-rs](https://docs.rs/owo-colors/badge.svg)](https://docs.rs/owo-colors)
+![MSRV 1.51+](https://img.shields.io/badge/rustc-1.51+-blue.svg)
+![Downloads](https://img.shields.io/crates/d/owo-colors)
+
+A zero-allocation no_std-compatible zero-cost way to add color to your Rust terminal to make people go owo.
+
+**Supports:**
+
+* [x] All std/core formatters
+    * [x] [Display](https://doc.rust-lang.org/std/fmt/trait.Display.html)
+    * [x] [Debug](https://doc.rust-lang.org/std/fmt/trait.Debug.html)
+    * [x] [Octal](https://doc.rust-lang.org/std/fmt/trait.Octal.html)
+    * [x] [LowerHex](https://doc.rust-lang.org/std/fmt/trait.LowerHex.html)
+    * [x] [UpperHex](https://doc.rust-lang.org/std/fmt/trait.UpperHex.html)
+    * [x] [Pointer](https://doc.rust-lang.org/std/fmt/trait.Pointer.html)
+    * [x] [Binary](https://doc.rust-lang.org/std/fmt/trait.Binary.html)
+    * [x] [LowerExp](https://doc.rust-lang.org/std/fmt/trait.LowerExp.html)
+    * [x] [UpperExp](https://doc.rust-lang.org/std/fmt/trait.UpperExp.html)
+* [x] Optional checking for if a terminal supports colors
+    * [x] Enabled for CI
+    * [x] Disabled by default for non-terminal outputs
+    * [x] Overridable by `NO_COLOR`/`FORCE_COLOR` environment variables
+    * [x] Overridable programatically via [`set_override`](https://docs.rs/owo-colors/latest/owo_colors/fn.set_override.html)
+* [x] Dependency-less by default
+* [x] Hand picked names for all ANSI (4-bit) and Xterm (8-bit) colors
+* [x] Support for RGB colors
+* [x] Set colors at compile time by generics or at runtime by value
+* [x] All ANSI colors
+    * [x] Basic support (normal and bright variants)
+    * [x] Xterm support (high compatibility and 256 colors)
+    * [x] Truecolor support (modern, 48-bit color)
+* [x] Styling (underline, strikethrough, etc)
+
+owo-colors is also more-or-less a drop-in replacement for [colored](https://crates.io/crates/colored), allowing colored to work in a no_std environment. No allocations or dependencies required because embedded systems deserve to be pretty too uwu.
+
+To add to your Cargo.toml:
+```toml
+owo-colors = "3"
+```
+
+## Example
+```rust
+use owo_colors::OwoColorize;
+ 
+fn main() {
+    // Foreground colors
+    println!("My number is {:#x}!", 10.green());
+    // Background colors
+    println!("My number is not {}!", 4.on_red());
+}
+```
+
+## Generic colors
+```rust
+use owo_colors::OwoColorize;
+use owo_colors::colors::*;
+
+fn main() {
+    // Generically color
+    println!("My number might be {}!", 4.fg::<Black>().bg::<Yellow>());
+}
+```
+
+## Stylize
+```rust
+use owo_colors::OwoColorize;
+
+println!("{}", "strikethrough".strikethrough());
+```
+
+## Only Style on Supported Terminals
+
+```rust
+use owo_colors::{OwoColorize, Stream::Stdout};
+
+println!(
+    "{}",
+    "colored blue if a supported terminal"
+        .if_supports_color(Stdout, |text| text.bright_blue())
+);
+```
+
+Supports `NO_COLOR`/`FORCE_COLOR` environment variables, checks if it's a tty, checks
+if it's running in CI (and thus likely supports color), and checks which terminal is being
+used. (Note: requires `supports-colors` feature)