chore: introduce ethereum-primitives crate (#13185)

crates/ethereum/primitives/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "reth-ethereum-primitives"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+homepage.workspace = true
+repository.workspace = true
+description = "Ethereum primitive types"
+
+[lints]
+workspace = true
+
+[dependencies]
+
+[features]
+default = ["std"]
+std = []

crates/ethereum/primitives/src/lib.rs

@@ -0,0 +1,10 @@
+//! Standalone crate for ethereum-specific Reth primitive types.
+
+#![doc(
+    html_logo_url = "https://raw.githubusercontent.com/paradigmxyz/reth/main/assets/reth-docs.png",
+    html_favicon_url = "https://avatars0.githubusercontent.com/u/97369466?s=256",
+    issue_tracker_base_url = "https://github.com/paradigmxyz/reth/issues/"
+)]
+#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
+#![cfg_attr(not(test), warn(unused_crate_dependencies))]
+#![cfg_attr(not(feature = "std"), no_std)]