Add missed file

beacon_chain/types/src/validator_registration.rs

@@ -0,0 +1,24 @@
+use bls::{
+    Keypair,
+    PublicKey,
+    Signature,
+};
+use super::{
+    Address,
+    Hash256,
+};
+
+
+/// The information gathered from the PoW chain validator registration function.
+#[derive(Debug, Clone, PartialEq)]
+pub struct ValidatorRegistration {
+    pub pubkey: PublicKey,
+    pub withdrawal_shard: u16,
+    pub withdrawal_address: Address,
+    pub randao_commitment: Hash256,
+    pub proof_of_possession: Signature,
+}
+
+impl ValidatorRegistration {
+    pub fn random()
+}