refactor(data): Check to see if an item is a weapon

This gives us the ability to load weapon entites from our data
files.

src/spawner/template.rs

@@ -106,6 +106,14 @@ impl Templates {
                 }
             });
         }
+
+        if let Some(damage) = &template.base_damage {
+            commands.add_component(entity, Damage(*damage));
+
+            if template.entity_type == EntityType::Item {
+                commands.add_component(entity, Weapon{});
+            }
+        }
     }
 }