[idd] helper: add simple static widget implementation

idd/LGIddHelper/CWidget.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+class CWidget {
+protected:
+  HWND m_hwnd = NULL;
+
+  HWND createWindowSimple(LPCWSTR cls, LPCWSTR title, DWORD style, HWND parent);
+
+public:
+  virtual ~CWidget();
+  void destroy();
+
+  HWND hwnd() { return m_hwnd; }
+  operator HWND() { return m_hwnd; }
+};