Name classes consistently

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

pass/Views/UILocalizedLabel.swift

@@ -0,0 +1,18 @@
+/*
+ UILocalizedLabel.swift
+ pass
+
+ Created by Danny Moesch on 20.01.19.
+ Copyright © 2019 Bob Sun. All rights reserved.
+ */
+
+import UIKit
+import passKit
+
+class UILocalizedLabel: UILabel {
+
+    override func awakeFromNib() {
+        super.awakeFromNib()
+        text = text?.localize()
+    }
+}