Wallet store test (#312)
* add TestDeleteContractUTXO
* update
* add TestDeleteRecoveryStatus
* update TestDeleteRecoveryStatus
* add TestGetWalletInfo
* add TestDeleteUnconfirmedTransaction
* update TestDeleteUnconfirmedTransaction
* add TestListUnconfirmedTransactions
* update
* add TestGetGlobalTransactionIndex
* update ListTransactions
* add TestGetAsset
* add TestDeleteTransactions
* update TestDeleteTransactions
* add TestDeleteWalletTransactions
- [DH] database/account_store.go
- [DH] database/account_store_test.go
- [DH] database/wallet_store.go
- [DH] database/wallet_store_test.go