Migrate wine-staging from main repo (#3322)

Casks/wine-staging.rb

@@ -0,0 +1,33 @@
+cask 'wine-staging' do
+  version '2.1'
+  sha256 '16581c8bb0a226dd1678e586426abe4075aa373eaed187560ee4bb0e926b4826'
+
+  url "https://repos.wine-staging.com/macosx/i686/winehq-staging-#{version}.pkg"
+  name 'WineHQ-staging'
+  homepage 'https://www.wine-staging.com/'
+
+  depends_on cask: 'xquartz'
+
+  pkg "winehq-staging-#{version}.pkg",
+      choices: [
+                 {
+                   'choiceIdentifier' => 'choice3',
+                   'choiceAttribute'  => 'selected',
+                   'attributeSetting' => 1,
+                 },
+               ]
+
+  uninstall pkgutil: [
+                       'org.winehq.wine-staging',
+                       'org.winehq.wine-staging-deps',
+                       'org.winehq.wine-staging-deps64',
+                       'org.winehq.wine-staging32',
+                       'org.winehq.wine-staging64',
+                     ],
+            delete:  '/Applications/Wine Staging.app'
+
+  caveats <<-EOS.undent
+    #{token} installs support for running 64 bit applications in Wine, which is considered experimental.
+    If you do not want 64 bit support, you should download and install the #{token} package manually.
+  EOS
+end