feat(primitives): add Chain (#18)

* this is basically the same as in foundry-config

Cargo.lock

@@ -400,7 +400,7 @@ dependencies = [
  "chrono",
  "elliptic-curve",
  "ethabi",
- "fastrlp",
+ "fastrlp 0.1.3",
  "generic-array",
  "hex",
  "k256",
@@ -438,6 +438,17 @@ dependencies = [
  "fastrlp-derive",
 ]
 
+[[package]]
+name = "fastrlp"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f9244dd9f0a2b54815814926640439146f469837ec4141e33354b6b258a0493"
+dependencies = [
+ "arrayvec",
+ "auto_impl",
+ "bytes",
+]
+
 [[package]]
 name = "fastrlp-derive"
 version = "0.1.2"
@@ -1434,6 +1445,7 @@ version = "0.1.0"
 dependencies = [
  "bytes",
  "ethers-core",
+ "fastrlp 0.2.0",
 ]
 
 [[package]]
@@ -1461,7 +1473,7 @@ dependencies = [
 name = "reth-rpc-types"
 version = "0.1.0"
 dependencies = [
- "fastrlp",
+ "fastrlp 0.1.3",
  "reth-primitives",
  "serde",
  "serde_json",