MAPG-140 add UserConfirmation model and repository and adapt SignupController

src/PersistentData/Model/UserConfirmation.php

@@ -0,0 +1,44 @@
+<?php namespace MapGuesser\PersistentData\Model;
+
+class UserConfirmation extends Model
+{
+    protected static string $table = 'user_confirmations';
+
+    protected static array $fields = ['user_id', 'token'];
+
+    private ?User $user = null;
+
+    private ?int $userId = null;
+
+    private string $token = '';
+
+    public function setUser(User $user): void
+    {
+        $this->user = $user;
+    }
+
+    public function setUserId(int $userId): void
+    {
+        $this->userId = $userId;
+    }
+
+    public function setToken(string $token): void
+    {
+        $this->token = $token;
+    }
+
+    public function getUser(): ?User
+    {
+        return $this->user;
+    }
+
+    public function getUserId(): ?int
+    {
+        return $this->userId;
+    }
+
+    public function getToken(): string
+    {
+        return $this->token;
+    }
+}