Qt: Add file patcher

include/panda_qt/patch_window.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <QLabel>
+#include <QWidget>
+#include <filesystem>
+
+#include "panda_qt/ellided_label.hpp"
+
+class PatchWindow final : public QWidget {
+	Q_OBJECT
+
+  public:
+	PatchWindow(QWidget* parent = nullptr);
+	~PatchWindow() = default;
+
+  private:
+	std::filesystem::path inputPath = "";
+	std::filesystem::path patchPath = "";
+
+	EllidedLabel* inputPathLabel = nullptr;
+	EllidedLabel* patchPathLabel = nullptr;
+};