editors: add IL2CPP module download context menu

Author: unitycoder

UnityLauncherPro/MainWindow.xaml

@@ -283,6 +283,7 @@
                                     <MenuItem x:Name="menuItemDownloadIOSModule" Header="Download IOS module" Click="MenuItemDownloadIOSModule_Click"/>
                                     <MenuItem x:Name="menuItemDownloadWebGLModule" Header="Download WebGL module" Click="MenuItemDownloadWebGLModule_Click" />
                                     <MenuItem x:Name="menuItemDownloadLinuxModule" Header="Download Linux modules" Click="MenuItemDownloadLinuxModule_Click"/>
+                                    <MenuItem x:Name="menuItemDownloadIL2CPPModule" Header="Download IL2CPP module" Click="menuItemDownloadIL2CPPModule_Click"/>
                                 </MenuItem>
                             </ContextMenu>
                         </DataGrid.ContextMenu>

UnityLauncherPro/MainWindow.xaml.cs

@@ -3284,6 +3284,13 @@ private void rdoAll_Checked(object sender, RoutedEventArgs e)
             FilterUpdates();
         }
 
+        private void menuItemDownloadIL2CPPModule_Click(object sender, RoutedEventArgs e)
+        {
+            var unity = GetSelectedUnity();
+            if (unity == null) return;
+            Tools.DownloadAdditionalModules(unity.Path, unity.Version, "Windows-IL2CPP");
+        }
+
         //private void BtnBrowseTemplateUnityPackagesFolder_Click(object sender, RoutedEventArgs e)
         //{
         //    var folder = Tools.BrowseForOutputFolder("Select unitypackage Templates folder");

UnityLauncherPro/Tools.cs

@@ -376,6 +376,7 @@ public static bool LaunchExplorer(string folder)
             {
                 for (int i = folder.Length - 1; i > -1; i--)
                 {
+                    // TODO path.separator
                     if (folder[i] == '/')
                     {
                         if (Directory.Exists(folder.Substring(0, i)))