[UI] Redesigned "Install Content" window

- Added ID for each ImGui window
- Added filesystem::CreateFolder function

src/xenia/vfs/vfs_dump.cc

@@ -44,7 +44,10 @@ int vfs_dump_main(const std::vector<std::string>& args) {
     XELOGE("Failed to initialize device");
     return 1;
   }
-  return VirtualFileSystem::ExtractContentFiles(device.get(), base_path);
+
+  uint64_t progress = 0;
+  return VirtualFileSystem::ExtractContentFiles(device.get(), base_path,
+                                                progress);
 }
 
 }  // namespace vfs