Add support for batch install to NAND

This adds support to batch install files to NAND

src/yuzu/install_dialog.h

@@ -0,0 +1,35 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QDialog>
+
+class QCheckBox;
+class QDialogButtonBox;
+class QHBoxLayout;
+class QLabel;
+class QListWidget;
+class QVBoxLayout;
+
+class InstallDialog : public QDialog {
+    Q_OBJECT
+
+public:
+    explicit InstallDialog(QWidget* parent, const QStringList& files);
+    ~InstallDialog() override;
+
+    QStringList GetFilenames() const;
+    bool ShouldOverwriteFiles() const;
+
+private:
+    QListWidget* file_list;
+
+    QVBoxLayout* vbox_layout;
+    QHBoxLayout* hbox_layout;
+
+    QLabel* description;
+    QCheckBox* overwrite_files;
+    QDialogButtonBox* buttons;
+};