Name classes consistently

* Settings are called *SettingsTableViewController
* Key importers are called *ImportTableViewController
* Classes in UserInterface folder are split into Controllers or Views

pass/Controllers/AutoCellHeightUITableViewController.swift

@@ -0,0 +1,17 @@
+//
+//  AutoCellHeightUITableViewController.swift
+//  pass
+//
+//  Created by Danny Moesch on 17.02.19.
+//  Copyright © 2019 Bob Sun. All rights reserved.
+//
+
+import UIKit
+
+class AutoCellHeightUITableViewController: UITableViewController {
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        tableView.estimatedRowHeight = 170
+        tableView.rowHeight = UITableView.automaticDimension
+    }
+}