add packs resources (WIP)

src/content/content_fwd.hpp

@@ -0,0 +1,18 @@
+#ifndef CONTENT_CONTENT_FWD_HPP_
+#define CONTENT_CONTENT_FWD_HPP_
+
+#include "../typedefs.hpp"
+
+class Content;
+class ContentPackRuntime;
+
+enum class contenttype {
+    none, block, item, entity
+};
+
+enum class ResourceType : size_t {
+    CAMERA,
+    LAST=CAMERA
+};
+
+#endif // CONTENT_CONTENT_FWD_HPP_