feat: initial support for smart resource pack parsing on file handler

Signed-off-by: Ryan Cao <70191398+ryanccn@users.noreply.github.com>

launcher/ui/dialogs/ImportResourcePackDialog.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <QDialog>
+#include <QItemSelection>
+
+namespace Ui {
+class ImportResourcePackDialog;
+}
+
+class ImportResourcePackDialog : public QDialog {
+    Q_OBJECT
+
+   public:
+    explicit ImportResourcePackDialog(QWidget* parent = 0);
+    ~ImportResourcePackDialog();
+    QString selectedInstanceKey;
+
+   private:
+    Ui::ImportResourcePackDialog* ui;
+
+   private slots:
+    void selectionChanged(QItemSelection, QItemSelection);
+    void activated(QModelIndex);
+};