-Added ObjectBuilderDefinition base class
-Updated AmmoMagazinesDefinition to use ObjectBuilderDefinition
-Updated CubeBlockDefinition to use ObjectBuilderDefinition
-Updated GlobalEventsDefinition to use ObjectBuilderDefinition
-Started on remaining definition classes
-Implemented PhysicalItemsDefinition and PhysicalItemDefinitionsWrapper classes
-Implemented ComponentsDefinition that inherits from PhysicalItemsDefinition

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