add support deletion

crates/signed_core/src/lib.rs

@@ -1,5 +1,6 @@
 pub mod addr;
 pub mod clone_url;
+pub mod deletions;
 pub mod filters;
 pub mod model;
 pub mod state;
@@ -7,6 +8,7 @@ pub mod status;
 
 pub use addr::{RepoAddr, repo_addr};
 pub use clone_url::{CloneTarget, parse_clone_url};
+pub use deletions::Deletions;
 pub use model::Announcement;
 pub use state::parse_state;
 pub use status::{RepoStatus, references_root, resolve_status};