Split rigid-bodies and colliders into multiple components

src/data/mod.rs

@@ -1,8 +1,11 @@
 //! Data structures modified with guaranteed deterministic behavior after deserialization.
 
+pub use self::arena::{Arena, Index};
 pub use self::coarena::Coarena;
+pub use self::component_set::{BundleSet, ComponentSet, ComponentSetMut, ComponentSetOption};
 
 pub mod arena;
 mod coarena;
+mod component_set;
 pub(crate) mod graph;
 pub mod pubsub;