Imports
- github.com/hyperledger/fabric/msp
- github.com/golang/protobuf/proto
- github.com/hyperledger/fabric/common/tools/idemixgen/idemixca
- github.com/hyperledger/fabric/idemix
- github.com/hyperledger/fabric/orderer/common/metadata
- github.com/pkg/errors
- gopkg.in/alecthomas/kingpin.v2