Add bitcoin unclaimed deposit event (paritytech#290)

Author: atenjin

xpallets/gateway/bitcoin/src/lib.rs

@@ -170,6 +170,8 @@ decl_event!(
         InsertHeader(H256),
         /// tx hash, block hash, tx type
         ProcessTx(H256, H256, BtcTxState),
+        /// Unclaimed deposit tx
+        UnclaimedDeposit(H256),
         /// who, balance, txhsah, Chain Addr
         DepositPending(AccountId, Balance, H256, AddrStr),
         /// create withdraw tx, who proposal, withdrawal list id

xpallets/gateway/bitcoin/src/tx/mod.rs

@@ -441,6 +441,8 @@ fn insert_pending_deposit<T: Trait>(input_address: &Address, txid: &H256, balanc
                 balance
             );
             list.push(cache);
+
+            Module::<T>::deposit_event(RawEvent::UnclaimedDeposit(*txid));
         }
     });
 }