Multi-Authentication System with Golang and Gin-gonic Add these packages first
// gin framework go get -u github.com/gin-gonic/gin
// ORM library go get -u github.com/jinzhu/gorm
// package that we will be used to authenticate and generate our JWT go get -u github.com/dgrijalva/jwt-go
// to help manage our environment variables go get -u github.com/joho/godotenv
// to encrypt our user's password go get -u golang.org/x/crypto