[AltStore] Revises authentication flow with better UI

AltStore/Model/Team.swift

@@ -0,0 +1,52 @@
+//
+//  Team.swift
+//  AltStore
+//
+//  Created by Riley Testut on 5/31/19.
+//  Copyright © 2019 Riley Testut. All rights reserved.
+//
+
+import Foundation
+import CoreData
+
+import AltSign
+
+@objc(Team)
+class Team: NSManagedObject
+{
+    /* Properties */
+    @NSManaged var name: String
+    @NSManaged var identifier: String
+    @NSManaged var type: ALTTeamType
+    
+    /* Relationships */
+    @NSManaged private(set) var account: Account!
+    
+    var altTeam: ALTTeam?
+    
+    private override init(entity: NSEntityDescription, insertInto context: NSManagedObjectContext?)
+    {
+        super.init(entity: entity, insertInto: context)
+    }
+    
+    init(_ team: ALTTeam, account: Account, context: NSManagedObjectContext)
+    {
+        super.init(entity: Team.entity(), insertInto: context)
+        
+        self.altTeam = team
+        
+        self.name = team.name
+        self.identifier = team.identifier
+        self.type = team.type
+        
+        self.account = account
+    }
+}
+
+extension Team
+{
+    @nonobjc class func fetchRequest() -> NSFetchRequest<Team>
+    {
+        return NSFetchRequest<Team>(entityName: "Team")
+    }
+}