Adds basic MyAppsViewController implementation

AltStore/Model/InstalledApp.swift

@@ -0,0 +1,50 @@
+//
+//  InstalledApp.swift
+//  AltStore
+//
+//  Created by Riley Testut on 5/20/19.
+//  Copyright © 2019 Riley Testut. All rights reserved.
+//
+
+import Foundation
+import CoreData
+
+@objc(InstalledApp)
+class InstalledApp: NSManagedObject
+{
+    /* Properties */
+    @NSManaged var bundleIdentifier: String
+    
+    @NSManaged var signedDate: Date
+    @NSManaged var expirationDate: Date
+    
+    @NSManaged var isBeta: Bool
+    
+    /* Relationships */
+    @NSManaged private(set) var app: App?
+    
+    private override init(entity: NSEntityDescription, insertInto context: NSManagedObjectContext?)
+    {
+        super.init(entity: entity, insertInto: context)
+    }
+    
+    init(app: App, bundleIdentifier: String, signedDate: Date, expirationDate: Date, context: NSManagedObjectContext)
+    {
+        super.init(entity: InstalledApp.entity(), insertInto: context)
+        
+        let app = context.object(with: app.objectID) as! App
+        self.app = app
+        
+        self.bundleIdentifier = bundleIdentifier
+        self.signedDate = signedDate
+        self.expirationDate = expirationDate
+    }
+}
+
+extension InstalledApp
+{
+    @nonobjc class func fetchRequest() -> NSFetchRequest<InstalledApp>
+    {
+        return NSFetchRequest<InstalledApp>(entityName: "InstalledApp")
+    }
+}