implement ship modules

src/lib/config/GameConfig.h

@@ -5,8 +5,9 @@
 #include "RecipesConfig.h"
 #include "ShipsConfig.h"
 #include "StationsConfig.h"
+#include "ModulesConfig.h"
 
-// Aggregate of all five simulation config files. Loaded at startup and reloaded
+// Aggregate of all simulation config files. Loaded at startup and reloaded
 // from disk on each game restart (REQ-CFG-RELOAD). See architecture.md "Config Loading".
 struct GameConfig
 {
@@ -15,4 +16,5 @@ struct GameConfig
     RecipesConfig recipes;
     ShipsConfig ships;
     StationsConfig stations;
+    ModulesConfig modules;
 };