Proper Rocket Holding

Sanity checks on Prop and LUP launchpads to not open if no valid rocket
Add serialization for sending item configs
so that rockets show for other players

dGame/dInventory/EquippedItem.h

@@ -1,6 +1,7 @@
-#pragma once
+#pragma once
 
 #include "dCommonVars.h"
+#include "LDFFormat.h"
 
 /**
  * An item that's equipped, generally as a smaller return type than the regular Item class
@@ -26,4 +27,9 @@ struct EquippedItem
      * The slot this item is stored in
      */
 	uint32_t slot = 0;
+
+	/**
+	 * The configuration of the item with any extra data
+	 */
+	std::vector<LDFBaseData*> config = {};
 };