Debug: Added ShowDebugLogWindow().

Internal: renamed old IMGUI_DEBUG_LOG() to IMGUI_DEBUG_PRINT().
Amended once.

backends/imgui_impl_win32.cpp

@@ -617,6 +617,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
             io.AddInputCharacterUTF16((unsigned short)wParam);
         return 0;
     case WM_SETCURSOR:
+        // This is required to restore cursor when transitioning from e.g resize borders to client area.
         if (LOWORD(lParam) == HTCLIENT && ImGui_ImplWin32_UpdateMouseCursor())
             return 1;
         return 0;