Add push notifications

CHDataManagement/Notifications/NotificationRequest.swift

@@ -0,0 +1,21 @@
+
+struct NotificationRequest {
+
+    let accessToken: String
+
+    /// The notificiations in the available languages
+    let notifications: [String : WebNotification]
+
+    init(accessToken: String, notifications: [String : WebNotification]) {
+        self.accessToken = accessToken
+        self.notifications = notifications
+    }
+
+    func notification(for language: String) -> WebNotification? {
+        notifications[language] ?? notifications["en"]
+    }
+}
+
+extension NotificationRequest: Codable {
+
+}