update/fix for a working Windows package installer

Author: TheTechsTech

bin/installChocolatey.cmd

@@ -1,6 +1,2 @@
 @echo off
-SET DIR=%~dp0%
-
-powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "((new-object net.webclient).DownloadFile('https://chocolatey.org/install.ps1','install.ps1'))"
-powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "& '%DIR%install.ps1' %*"
-SET PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin
+@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

package.json

@@ -9,7 +9,8 @@
   },
   "scripts": {
     "test": "mocha -R list test/*.js --timeout=0",
-    "coverage": "npx c8 --reporter json --reporter text npm test && npx codecov -f coverage/coverage-final.json"
+    "coverage": "npx c8 --reporter json --reporter text npm test && npx codecov -f coverage/coverage-final.json",
+    "get-installer": "node ./bin/installer.js --get"
   },
   "files": [
     "index.js",