new: usr: implement the 2FA authentication (TOTP and backup codes) #4

config/packages/scheb_2fa.yaml

@@ -0,0 +1,13 @@
+scheb_two_factor:
+  security_tokens:
+    - Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken
+    - Symfony\Component\Security\Http\Authenticator\Token\PostAuthenticationToken
+
+  totp:
+    enabled: true
+    issuer: "Mine Seeker"
+    server_name: "Mine Seeker"
+    template: "Security/2fa.html.twig"
+
+  backup_codes:
+    enabled: true