signer

Shows installation name in email sign code message

Remove parsers and formatters in favor of struct methods

Example:

type XRequest struct {
   ...
}

function (r *XRequest) ToEntity() *entitites.X {
   return &entities.X{...}
}

type XResponse struct {
   ...
}

function NewXResponse(x *entities.X) *XResponse {
   return &XResponse{....}
}