Implement user API and first tests.

app/Repositories/User/UserRepositoryInterface.php

@@ -31,7 +31,6 @@ use Illuminate\Support\Collection;
  */
 interface UserRepositoryInterface
 {
-
     /**
      * Returns a collection of all users.
      *
@@ -159,6 +158,16 @@ interface UserRepositoryInterface
      */
     public function unblockUser(User $user): void;
 
+    /**
+     * Update user info.
+     *
+     * @param User  $user
+     * @param array $data
+     *
+     * @return User
+     */
+    public function update(User $user, array $data): User;
+
     /**
      * This updates the users email address. Same as changeEmail just without most logging. This makes sure that the undo/confirm routine can't catch this one.
      * The user is NOT blocked.