termui: migrate to awesome-gocui instead of the old fork I had

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+# GOCUI - Go Console User Interface
+[![CircleCI](https://circleci.com/gh/awesome-gocui/gocui/tree/master.svg?style=svg)](https://circleci.com/gh/awesome-gocui/gocui/tree/master)
+[![CodeCov](https://codecov.io/gh/awesome-gocui/gocui/branch/master/graph/badge.svg)](https://codecov.io/gh/awesome-gocui/gocui)
+[![Go Report Card](https://goreportcard.com/badge/github.com/awesome-gocui/gocui)](https://goreportcard.com/report/github.com/awesome-gocui/gocui)
+[![GolangCI](https://golangci.com/badges/github.com/awesome-gocui/gocui.svg)](https://golangci.com/badges/github.com/awesome-gocui/gocui.svg)
+[![GoDoc](https://godoc.org/github.com/awesome-gocui/gocui?status.svg)](https://godoc.org/github.com/awesome-gocui/gocui)
+![GitHub tag (latest SemVer)](https://img.shields.io/github/tag/awesome-gocui/gocui.svg)
+
+Minimalist Go package aimed at creating Console User Interfaces.  
+A community fork based on the amazing work of [jroimartin](https://github.com/jroimartin/gocui)
+
+## Features
+
+* Minimalist API.
+* Views (the "windows" in the GUI) implement the interface io.ReadWriter.
+* Support for overlapping views.
+* The GUI can be modified at runtime (concurrent-safe).
+* Global and view-level keybindings.
+* Mouse support.
+* Colored text.
+* Customizable editing mode.
+* Easy to build reusable widgets, complex layouts...
+
+## About fork
+
+This fork has many improvements over the original work from [jroimartin](https://github.com/jroimartin/gocui).  
+
+* Better wide character support
+* Support for 1 Line height views
+* Better support for running in docker container
+* Customize frame colors
+* Improved code comments and quality
+* Many small improvements
+* Change Visibility of views
+
+For information about this org see: [awesome-gocui/about](https://github.com/awesome-gocui/about).
+
+## Installation
+
+Execute:
+
+```
+$ go get github.com/awesome-gocui/gocui
+```
+
+## Documentation
+
+Execute:
+
+```
+$ go doc github.com/awesome-gocui/gocui
+```
+
+Or visit [godoc.org](https://godoc.org/github.com/awesome-gocui/gocui) to read it
+online.
+
+## Example
+See the [_example](./_example/) folder for more examples
+
+```go
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/awesome-gocui/gocui"
+)
+
+func main() {
+	g, err := gocui.NewGui(gocui.OutputNormal, false)
+	if err != nil {
+		log.Panicln(err)
+	}
+	defer g.Close()
+
+	g.SetManagerFunc(layout)
+
+	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
+		log.Panicln(err)
+	}
+
+	if err := g.MainLoop(); err != nil && !gocui.IsQuit(err) {
+		log.Panicln(err)
+	}
+}
+
+func layout(g *gocui.Gui) error {
+	maxX, maxY := g.Size()
+	if v, err := g.SetView("hello", maxX/2-7, maxY/2, maxX/2+7, maxY/2+2, 0); err != nil {
+		if !gocui.IsUnknownView(err) {
+			return err
+		}
+		fmt.Fprintln(v, "Hello world!")
+		if _, err := g.SetCurrentView("hello"); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func quit(g *gocui.Gui, v *gocui.View) error {
+	return gocui.ErrQuit
+}
+```
+
+## Screenshots
+
+![r2cui](https://cloud.githubusercontent.com/assets/1223476/19418932/63645052-93ce-11e6-867c-da5e97e37237.png)
+
+![_examples/demo.go](https://cloud.githubusercontent.com/assets/1223476/5992750/720b84f0-aa36-11e4-88ec-296fa3247b52.png)
+
+![_examples/dynamic.go](https://cloud.githubusercontent.com/assets/1223476/5992751/76ad5cc2-aa36-11e4-8204-6a90269db827.png)
+
+## Projects using gocui
+
+* [komanda-cli](https://github.com/mephux/komanda-cli): IRC Client For Developers.
+* [vuls](https://github.com/future-architect/vuls): Agentless vulnerability scanner for Linux/FreeBSD.
+* [wuzz](https://github.com/asciimoo/wuzz): Interactive cli tool for HTTP inspection.
+* [httplab](https://github.com/gchaincl/httplab): Interactive web server.
+* [domainr](https://github.com/MichaelThessel/domainr): Tool that checks the availability of domains based on keywords.
+* [gotime](https://github.com/nanohard/gotime): Time tracker for projects and tasks.
+* [claws](https://github.com/thehowl/claws): Interactive command line client for testing websockets.
+* [terminews](http://github.com/antavelos/terminews): Terminal based RSS reader.
+* [diagram](https://github.com/esimov/diagram): Tool to convert ascii arts into hand drawn diagrams.
+* [pody](https://github.com/JulienBreux/pody): CLI app to manage Pods in a Kubernetes cluster.
+* [kubexp](https://github.com/alitari/kubexp): Kubernetes client.
+* [kcli](https://github.com/cswank/kcli): Tool for inspecting kafka topics/partitions/messages.
+* [fac](https://github.com/mkchoi212/fac): git merge conflict resolver
+* [jsonui](https://github.com/gulyasm/jsonui): Interactive JSON explorer for your terminal.
+* [cointop](https://github.com/miguelmota/cointop): Interactive terminal based UI application for tracking cryptocurrencies.
+* [lazygit](https://github.com/jesseduffield/lazygit): simple terminal UI for git commands.
+* [lazydocker](https://github.com/jesseduffield/lazydocker): The lazier way to manage everything docker.
+
+Note: if your project is not listed here, let us know! :)