Harding security using Helmet

Add package using go get github.com/bimalabs/middlewares
Add Helmet middleware to dics/container.go

{
    Name:  "bima:middleware:helmet",
    Scope: bima.Application,
    Build: func() (middlewares.Middleware, error) {
        return helmet.New(), nil
    },
},

Add to configs/middlewares.yaml

middlewares:
    - helmet