store ship module layout in shipyard blueprint

src/lib/core/Blueprint.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <optional>
 #include <string>
 #include <vector>
 
@@ -8,6 +9,7 @@
 
 #include "BuildingType.h"
 #include "Rotation.h"
+#include "ShipLayout.h"
 
 struct BlueprintBuilding
 {
@@ -15,6 +17,7 @@ struct BlueprintBuilding
     Rotation     rotation;
     QPoint       offset;     // tile offset from bounding-box center (floor for even sizes)
     std::string  recipeId;   // empty = none selected
+    std::optional<ShipLayoutConfig> shipLayout;
 };
 
 struct Blueprint