implement required uman.UserRepository behaviors

type UserDeleter interface {
```
Delete(id interface{}) error
```
}

type UserCreator interface {
```
Create(u User) (interface{}, error)
```
}

type UserRetriever interface {
```
Retrieve(id interface{}) (User, error)
```
}

type UserManager interface { UserCreator UserRetriever UserDeleter }
create new instance using approproate repository interface implentation, 'r'

//r uman.UserCreator c:=uman.NewCreator(r) or //r uman.UserRetriever r:=uman.NewRetriever(r) or //r uman.UserDeleter d:=uman.NewDeleter(r) or //r uman.UserRepository um:=uman.NewUserManager(r)

Authmanager

implement behaviour of uman.User interface

//specifies user behaviour type User interface { //returns the primary key id of the user GetID() interface{} //returns the username of the user GetUsername() string //returns the email address of a user GetEmail() string //returns the hashed password of a user GetPassword() string }
create instance

//secret - secret key used to sign token //authid - cookie name or header name where token is stored //issuer - issuer of auth eg localhost

a := uman.NewJWTAuthManager(secret, authid, issuer)