Add initial structure Coordinator Forge Sequence

eth/client.go

@@ -0,0 +1,15 @@
+package eth
+
+import "github.com/hermeznetwork/hermez-node/common"
+
+type EthClient struct {
+}
+
+func NewEthClient() *EthClient {
+	// TODO
+	return &EthClient{}
+}
+func (ec *EthClient) ForgeCall(callData *common.CallDataForge) ([]byte, error) {
+	// TODO this depends on the smart contracts, once are ready this will be updated
+	return nil, nil
+}