added go modules

.circleci/config.yml

@@ -7,6 +7,8 @@ jobs:
     docker:
       # specify the version
       - image: circleci/golang:latest
+        environment:
+          GO111MODULE: "ON"
 
       # Specify service dependencies here if necessary
       # CircleCI maintains a library of pre-built images

go.mod

@@ -0,0 +1,30 @@
+module github.com/ConsenSys/handel
+
+go 1.12
+
+require (
+	github.com/BurntSushi/toml v0.3.1
+	github.com/aws/aws-sdk-go v1.21.8
+	github.com/cloudflare/bn256 v0.0.0-20190523220833-828ba4f91854
+	github.com/go-kit/kit v0.9.0
+	github.com/go-logfmt/logfmt v0.4.0 // indirect
+	github.com/ipfs/go-log v0.0.1
+	github.com/kr/fs v0.1.0 // indirect
+	github.com/libp2p/go-libp2p v0.2.1
+	github.com/libp2p/go-libp2p-crypto v0.1.0
+	github.com/libp2p/go-libp2p-host v0.1.0
+	github.com/libp2p/go-libp2p-metrics v0.1.0
+	github.com/libp2p/go-libp2p-net v0.1.0
+	github.com/libp2p/go-libp2p-peer v0.2.0
+	github.com/libp2p/go-libp2p-peerstore v0.1.3
+	github.com/libp2p/go-libp2p-pubsub v0.1.0
+	github.com/lucas-clemente/quic-go v0.11.2
+	github.com/montanaflynn/stats v0.5.0
+	github.com/multiformats/go-multiaddr v0.0.4
+	github.com/pkg/sftp v1.10.0
+	github.com/stretchr/testify v1.3.0
+	github.com/whyrusleeping/go-logging v0.0.0-20170515211332-0457bb6b88fc
+	github.com/willf/bitset v1.1.10
+	go.dedis.ch/onet/v3 v3.0.2
+	golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4
+)