Menu select add arrow button support

[elcritch]

Support for up & down arrows for interactive prompt. It's a pet peeve, I try and hit up/down every time Nimble prompts this way.

I didn't see any unit tests, but I tested it manually. Here's some manual test code:

import unittest
import strutils, strformat

import nimblepkg/cli

test "test prompt":
  let token = promptCustom("Personal access token?", "").strip()
  echo "token: " & $token

test "test prompt":
  let resp1 = prompt(dontForcePrompt, "Non-forced prompt example?")
  echo "answer: " & $resp1

test "test overriden prompt":
  let resp2 = prompt(forcePromptYes, "forced prompt (e.g. overriden)")
  assert resp2 == true
  echo "answer: " & $resp2

test "test displays":
  let name = "fakePackage"
  displayWarning(&"Installed package {name} should be renamed  ")
  displayDebug(&"Installed package {name} should be renamed  ")
  displayDetails(&"Installed package {name} should be renamed  ")
  displayError(&"Installed package {name} should be renamed  ")
  displayInfo(&"Installed package {name} should be renamed  ")
  displayHint(&"Installed package {name} should be renamed  ")

test "test display raw":
  display("Msg", "Some message", Hint)
  display("Msg2", "Some message", priority=HighPriority, displayType=Success)
  display("Msg3", "Some message", priority=HighPriority, displayType=Error)

test "test display medium priority":
  setVerbosity(MediumPriority)
  display("Msg", "Some message", Hint)

test "test display colorize":
  setShowColor(false)
  display("Msg33", "Some message", Warning, HighPriority)
  setShowColor(true)
  display("Msg34", "Some message", Warning, HighPriority)

test "test multiline":
  displayInfo("Some message\nwith lots of\nlines")

test "test interactive prompt":
  let resp = promptList(dontForcePrompt, "Select options:", ["alpha", "beta", "gamma"])
  displayInfo(&"Got answer: {resp} ")

[dom96]

Thanks! The only concern I have is that this might break something on different operating system's or terminal emulator, but I guess we will see :)