feat: world script reloading

src/content/Content.cpp

@@ -79,6 +79,14 @@ const ContentPackRuntime* Content::getPackRuntime(const std::string& id) const {
     return found->second.get();
 }
 
+ContentPackRuntime* Content::getPackRuntime(const std::string& id) {
+    auto found = packs.find(id);
+    if (found == packs.end()) {
+        return nullptr;
+    }
+    return found->second.get();
+}
+
 const UptrsMap<std::string, BlockMaterial>& Content::getBlockMaterials() const {
     return blockMaterials;
 }