add a testcase for StratumServerBitcoin::checkShare()
add a testcase for StratumServerBitcoin::checkShare()

btccom/btcpool,btccom/btcpool,btccom/btcpool,btccom/btcpool,btccom/btcpool,btccom/btcpool,btccom/btcpool,btccom/btcpool