shovel: deployed contract address data (#277)

Added contract address from transaction receipt rpc response to Receipt struct. This can be null so current filters ops don't work to only filter non null contract address values.

dig/dig.go

@@ -936,6 +936,8 @@ func (lwc *logWithCtx) get(name string) any {
 		return &lwc.t.GasPrice
 	case "tx_effective_gas_price":
 		return &lwc.t.EffectiveGasPrice
+	case "tx_contract_address":
+		return lwc.t.ContractAddress.Bytes()
 	case "tx_max_priority_fee_per_gas":
 		return &lwc.t.MaxPriorityFeePerGas
 	case "tx_max_fee_per_gas":

eth/types.go

@@ -172,6 +172,7 @@ type Receipt struct {
 	GasUsed           Uint64
 	EffectiveGasPrice uint256.Int
 	Logs              Logs
+	ContractAddress   Bytes
 }
 
 type Header struct {

jrpc2/client.go

@@ -654,6 +654,7 @@ type receiptResult struct {
 	GasUsed           eth.Uint64  `json:"gasUsed"`
 	EffectiveGasPrice uint256.Int `json:"effectiveGasPrice"`
 	Logs              eth.Logs    `json:"logs"`
+	ContractAddress   eth.Bytes   `json:"contractAddress"`
 }
 
 type receiptResp struct {
@@ -709,6 +710,7 @@ func (c *Client) receipts(ctx context.Context, url string, bm blockmap, start, l
 			tx.GasUsed = resps[i].Result[j].GasUsed
 			tx.EffectiveGasPrice = resps[i].Result[j].EffectiveGasPrice
 			tx.Logs = make([]eth.Log, len(resps[i].Result[j].Logs))
+			tx.ContractAddress.Write(resps[i].Result[j].ContractAddress)
 			copy(tx.Logs, resps[i].Result[j].Logs)
 		}
 	}