Add Resource trait to prelude

Author: alice-i-cecile

crates/bevy_ecs/src/lib.rs

@@ -39,8 +39,8 @@ pub mod prelude {
         },
         system::{
             Commands, In, IntoChainSystem, IntoExclusiveSystem, IntoSystem, Local, NonSend,
-            NonSendMut, ParallelCommands, ParamSet, Query, RemovedComponents, Res, ResMut, System,
-            SystemParamFunction,
+            NonSendMut, ParallelCommands, ParamSet, Query, RemovedComponents, Res, ResMut,
+            Resource, System, SystemParamFunction,
         },
         world::{FromWorld, Mut, World},
     };