Vendor dependencies

Let's see how I like this workflow.

vendor/tui/README.md

@@ -0,0 +1,128 @@
+# tui-rs
+
+[![Build Status](https://github.com/fdehau/tui-rs/workflows/CI/badge.svg)](https://github.com/fdehau/tui-rs/actions?query=workflow%3ACI+)
+[![Crate Status](https://img.shields.io/crates/v/tui.svg)](https://crates.io/crates/tui)
+[![Docs Status](https://docs.rs/tui/badge.svg)](https://docs.rs/crate/tui/)
+
+<img src="./assets/demo.gif" alt="Demo cast under Linux Termite with Inconsolata font 12pt">
+
+`tui-rs` is a [Rust](https://www.rust-lang.org) library to build rich terminal
+user interfaces and dashboards. It is heavily inspired by the `Javascript`
+library [blessed-contrib](https://github.com/yaronn/blessed-contrib) and the
+`Go` library [termui](https://github.com/gizak/termui).
+
+The library supports multiple backends:
+  - [crossterm](https://github.com/crossterm-rs/crossterm) [default]
+  - [termion](https://github.com/ticki/termion)
+
+The library is based on the principle of immediate rendering with intermediate
+buffers. This means that at each new frame you should build all widgets that are
+supposed to be part of the UI. While providing a great flexibility for rich and
+interactive UI, this may introduce overhead for highly dynamic content. So, the
+implementation try to minimize the number of ansi escapes sequences generated to
+draw the updated UI. In practice, given the speed of `Rust` the overhead rather
+comes from the terminal emulator than the library itself.
+
+Moreover, the library does not provide any input handling nor any event system and
+you may rely on the previously cited libraries to achieve such features.
+
+**I'm actively looking for help maintaining this crate. See [this issue](https://github.com/fdehau/tui-rs/issues/654)**
+
+### Rust version requirements
+
+Since version 0.17.0, `tui` requires **rustc version 1.56.1 or greater**.
+
+### [Documentation](https://docs.rs/tui)
+
+### Demo
+
+The demo shown in the gif can be run with all available backends.
+
+```
+# crossterm
+cargo run --example demo --release -- --tick-rate 200
+# termion
+cargo run --example demo --no-default-features --features=termion --release -- --tick-rate 200
+```
+
+where `tick-rate` is the UI refresh rate in ms.
+
+The UI code is in [examples/demo/ui.rs](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/demo/ui.rs) while the
+application state is in [examples/demo/app.rs](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/demo/app.rs).
+
+If the user interface contains glyphs that are not displayed correctly by your terminal, you may want to run
+the demo without those symbols:
+
+```
+cargo run --example demo --release -- --tick-rate 200 --enhanced-graphics false
+```
+
+### Widgets
+
+The library comes with the following list of widgets:
+
+  * [Block](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/block.rs)
+  * [Gauge](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/gauge.rs)
+  * [Sparkline](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/sparkline.rs)
+  * [Chart](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/chart.rs)
+  * [BarChart](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/barchart.rs)
+  * [List](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/list.rs)
+  * [Table](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/table.rs)
+  * [Paragraph](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/paragraph.rs)
+  * [Canvas (with line, point cloud, map)](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/canvas.rs)
+  * [Tabs](https://github.com/fdehau/tui-rs/blob/v0.19.0/examples/tabs.rs)
+
+Click on each item to see the source of the example. Run the examples with with 
+cargo (e.g. to run the gauge example `cargo run --example gauge`), and quit by pressing `q`.
+
+You can run all examples by running `cargo make run-examples` (require
+`cargo-make` that can be installed with `cargo install cargo-make`).
+
+### Third-party widgets
+
+* [tui-logger](https://github.com/gin66/tui-logger)
+
+### Apps using tui
+
+* [spotify-tui](https://github.com/Rigellute/spotify-tui)
+* [bandwhich](https://github.com/imsnif/bandwhich)
+* [kmon](https://github.com/orhun/kmon)
+* [gpg-tui](https://github.com/orhun/gpg-tui)
+* [ytop](https://github.com/cjbassi/ytop)
+* [zenith](https://github.com/bvaisvil/zenith)
+* [bottom](https://github.com/ClementTsang/bottom)
+* [oha](https://github.com/hatoo/oha)
+* [gitui](https://github.com/extrawurst/gitui)
+* [rust-sadari-cli](https://github.com/24seconds/rust-sadari-cli)
+* [desed](https://github.com/SoptikHa2/desed)
+* [diskonaut](https://github.com/imsnif/diskonaut)
+* [tickrs](https://github.com/tarkah/tickrs)
+* [rusty-krab-manager](https://github.com/aryakaul/rusty-krab-manager)
+* [termchat](https://github.com/lemunozm/termchat)
+* [taskwarrior-tui](https://github.com/kdheepak/taskwarrior-tui)
+* [gping](https://github.com/orf/gping/)
+* [Vector](https://vector.dev)
+* [KDash](https://github.com/kdash-rs/kdash)
+* [xplr](https://github.com/sayanarijit/xplr)
+* [minesweep](https://github.com/cpcloud/minesweep-rs)
+* [Battleship.rs](https://github.com/deepu105/battleship-rs)
+* [termscp](https://github.com/veeso/termscp)
+* [joshuto](https://github.com/kamiyaa/joshuto)
+* [adsb_deku/radar](https://github.com/wcampbell0x2a/adsb_deku#radar-tui)
+* [hoard](https://github.com/Hyde46/hoard)
+* [tokio-console](https://github.com/tokio-rs/console): a diagnostics and debugging tool for asynchronous Rust programs.
+* [hwatch](https://github.com/blacknon/hwatch): a alternative watch command that records the result of command execution and can display its history and diffs.
+* [ytui-music](https://github.com/sudipghimire533/ytui-music): listen to music from youtube inside your terminal.
+* [mqttui](https://github.com/EdJoPaTo/mqttui): subscribe or publish to a MQTT Topic quickly from the terminal.
+* [meteo-tui](https://github.com/16arpi/meteo-tui): french weather via the command line.
+* [picterm](https://github.com/ksk001100/picterm): preview images in your terminal.
+* [gobang](https://github.com/TaKO8Ki/gobang): a cross-platform TUI database management tool.
+
+### Alternatives
+
+You might want to checkout [Cursive](https://github.com/gyscos/Cursive) for an
+alternative solution to build text user interfaces in Rust.
+
+## License
+
+[MIT](LICENSE)