cachelib_stub: reorganise to include dummy bincode cache

Summary: We will be introducing a bincode cache as well as the abomonation cache.  Reorganise the OSS stub to support dummy versions of both.

Reviewed By: RajivTS

Differential Revision: D73443918

fbshipit-source-id: b54fd777b5197c46aedf83412fa5cb456b1c1c0e

Author: markbt

cachelib/rust/src/lib.rs

@@ -14,15 +14,11 @@
  * limitations under the License.
  */
 
-mod abomonation_cache;
+pub mod abomonation_cache;
 pub mod bincode_cache;
 mod errors;
 mod lrucache;
 
-// export Abomonation so that users of this crate don't need to add abomination as dependency
-pub use abomonation::Abomonation;
-
-pub use crate::abomonation_cache::*;
 pub use crate::errors::*;
 pub use crate::lrucache::*;