Unlinker: Add skeleton for Dumping and listing of assets

src/ZoneCommon/Pool/IZoneAssetPools.h

@@ -2,6 +2,7 @@
 
 #include "XAssetInfo.h"
 #include "Zone/ZoneTypes.h"
+#include "Zone/ZoneContent.h"
 
 class IZoneAssetPools
 {
@@ -11,4 +12,5 @@ public:
     virtual void* AddAsset(asset_type_t type, std::string name, void* asset, std::vector<std::string>& scriptStrings, std::vector<XAssetDependency>& dependencies) = 0;
     virtual void InitPoolStatic(asset_type_t type, size_t capacity) = 0;
     virtual void InitPoolDynamic(asset_type_t type) = 0;
-};
+    virtual ZoneContent GetContent() const = 0;
+};