feat: add windows installer script

Author: christyjacob4

src/SDK/Language/CLI.php

@@ -86,6 +86,12 @@ public function getFiles()
                 'template'      => 'cli/install.sh.twig',
                 'minify'        => false,
             ],
+            [
+                'scope'         => 'default',
+                'destination'   => 'install.ps1',
+                'template'      => 'cli/install.ps1.twig',
+                'minify'        => false,
+            ],
             [
                 'scope'         => 'default',
                 'destination'   => 'index.js',