Rename bootstrap directory

Renamed bootstrap directory to _bootstrap to conform to default ignore
pattern of autostow.sh, and make it visually clear that this is a
special directory, not one used for the dotfiles itself.

bootstrap/install_packages.sh

@@ -1,92 +0,0 @@
-#!/bin/bash
-#
-# Simple app bootstrapping script
-
-#=== main function ============================================================
-# NAME:         main
-# DESCRIPTION:  Display usage information for this script.
-# PARAMETERS:   see usage function
-#==============================================================================
-packages="${BOOTSTRAP_PACKAGES:-packages.csv}"
-
-main() {
-  local cmd=""
-  local ret=0
-
-  case "$1" in
-  -v | --version)
-    printf "Package bootstrap script.\n\n©Marty Oehme\n\nVersion: 0.3\n"
-    ;;
-  -h | --help)
-    printf "Usage: install [-f|--force][-v|--version][-h|--help]\n\n-f     Do not ask for any confirmations but force update and installation.\n"
-    ;;
-  -f | --force)
-    install true
-    ;;
-  *)
-    install false
-    ;;
-  esac
-  shift
-
-  $cmd "$@"
-  ret=$((ret + $?))
-  exit $ret
-}
-
-install_yay() {
-  # check for existing yay installation
-  if type yay >/dev/null 2>&1; then
-    echo "Existing yay installation found ..........................................."
-    return
-  fi
-
-  # use tmp dir to make yay
-  target=$(mktemp -d)
-  git clone https://aur.archlinux.org/yay.git "$target"
-  cd "$target" || exit
-  makepkg -si
-}
-
-update_repos() {
-  unattended="$1"
-  if "$unattended"; then
-    yay -Sqyy --noconfirm
-  else
-    yay -Syy
-  fi
-}
-
-install_packages() {
-  unattended="$1"
-  if "$unattended"; then
-    yay -Squ --noconfirm --needed - <"$packages"
-  else
-    yay -Su --needed - <"$packages"
-  fi
-}
-
-check_consent() {
-  echo "This will take a while and install many packages. Proceed [y/N]?"
-  read -r yes
-  if [[ "$yes" != y* ]]; then
-    echo "Exiting."
-    exit
-  fi
-}
-
-install() {
-  unattended=$1
-  echo "Beginning package bootstrap ..............................................."
-  if ! "$unattended"; then
-    check_consent
-  fi
-  echo "Installing yay ............................................................"
-  install_yay
-  echo "Installing apps ..........................................................."
-  update_repos "$unattended"
-  install_packages "$unattended"
-  echo "Done ......................................................................"
-}
-
-main "$@"