Add possibility to include asset lists in project definition

src/ZoneCommon/Zone/AssetList/AssetList.h

@@ -1,5 +1,6 @@
 #pragma once
 #include <string>
+#include <vector>
 
 class AssetListEntry
 {
@@ -10,3 +11,9 @@ public:
     AssetListEntry();
     AssetListEntry(std::string type, std::string name);
 };
+
+class AssetList
+{
+public:
+    std::vector<AssetListEntry> m_entries;
+};