add client own_tx import through client

ethcore/src/client/client.rs

@@ -52,7 +52,7 @@ use blockchain::{BlockChain, BlockProvider, TreeRoute, ImportRoute};
 use client::{
 	BlockID, TransactionID, UncleID, TraceId, ClientConfig, BlockChainClient,
 	MiningBlockChainClient, TraceFilter, CallAnalytics, BlockImportError, Mode,
-	ChainNotify
+	ChainNotify, TransactionImportResult
 };
 use client::Error as ClientError;
 use env_info::EnvInfo;
@@ -477,6 +477,11 @@ impl Client {
 		results.len()
 	}
 
+	/// Import a locally created transaction.
+	pub fn import_own_transaction(&self, transaction: SignedTransaction) -> Result<TransactionImportResult, EthcoreError> {
+		self.miner.import_own_transaction(self, transaction)
+	}
+
 	/// Attempt to get a copy of a specific block's final state.
 	///
 	/// This will not fail if given BlockID::Latest.