Actions
Implementing EntityAction allows you to create methods inside your route class that act as 
separate endpoints.
Actions all use the POST http method since it assumes you are passing in a list of entities to perform an action on.
Defining an action
An action must be annotated using the Action annotation class.
Each action should have (RoutingCall, List<Entity>) as parameters.
@Resource("user")
class UserRoute: APIRoute<User>() {
    //...
    @Action
    private fun disable(call: RoutingCall, users: List<User>) { 
        users.forEach {
            it.isActive = false
        }
    }
    @Action
    private fun activate(call: RoutingCall, users: List<User>) {
        users.forEach {
            it.isActive = true
        }
    }
}
Calling an action
To call an action you can use the following url pattern:
POST: {entity}/{action}/
In the user example above we can use the following urls:
POST: user/disable/POST: user/activate/