Adds (Managed)Patron Core Data entity

Will be used to cache Friend Zone patrons separately than the existing PatreonAccount entity.

AltStoreCore/Model/ManagedPatron.swift

@@ -0,0 +1,37 @@
+//
+//  ManagedPatron.swift
+//  AltStoreCore
+//
+//  Created by Riley Testut on 4/18/22.
+//  Copyright © 2022 Riley Testut. All rights reserved.
+//
+
+import CoreData
+
+@objc(ManagedPatron)
+public class ManagedPatron: NSManagedObject, Fetchable
+{
+    @NSManaged public var name: String
+    @NSManaged public var identifier: String
+
+    private override init(entity: NSEntityDescription, insertInto context: NSManagedObjectContext?)
+    {
+        super.init(entity: entity, insertInto: context)
+    }
+    
+    public init(patron: Patron, context: NSManagedObjectContext)
+    {
+        super.init(entity: ManagedPatron.entity(), insertInto: context)
+        
+        self.name = patron.name
+        self.identifier = patron.identifier
+    }
+}
+
+public extension ManagedPatron
+{
+    @nonobjc class func fetchRequest() -> NSFetchRequest<ManagedPatron>
+    {
+        return NSFetchRequest<ManagedPatron>(entityName: "Patron")
+    }
+}