Extend crates we patch to be empty from the Ethereum ecosystem

`ruint` pulls in many versions of many crates. This has it pull in less.

patches/ethereum/primitive-types-0.12/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "primitive-types"
+version = "0.12.99"
+description = "Patch to an empty crate"
+license = "MIT"
+repository = "https://github.com/serai-dex/serai/tree/develop/patches/ethereum/primitive-types"
+authors = ["Luke Parker <lukeparker5132@gmail.com>"]
+keywords = []
+edition = "2021"
+
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+
+[workspace]
+
+[features]
+std = []

patches/ethereum/primitive-types-0.12/src/lib.rs

@@ -0,0 +1 @@
+const _NEVER_COMPILED: [(); 0 - 1] = [(); 0 - 1];