Add CI

Author: sreya

.gitignore

@@ -1,2 +1,3 @@
 vendor
 bin
+.vscode

.travis.yml

@@ -0,0 +1,7 @@
+language: go
+
+go:
+- 1.12.x
+script: 
+- ./lint.sh 
+- go test -v ./...

lint.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -euo pipefail
+
+files=$(gofmt -l -s .)
+
+if [ ! -z "$files" ]; 
+then
+  echo "The following files need to be formatted:"
+  echo "$files"
+  echo "Please run 'gofmt -w -s .'"
+  exit 1
+fi
+
+go vet -composites=false .