Revert "Change AltStore naming to SideStore"

This reverts commit 646000920f.

AltStoreCore/Protocols/AppProtocol.swift

@@ -0,0 +1,52 @@
+//
+//  AppProtocol.swift
+//  AltStore
+//
+//  Created by Riley Testut on 7/26/19.
+//  Copyright © 2019 Riley Testut. All rights reserved.
+//
+
+import Foundation
+import AltSign
+
+public protocol AppProtocol
+{
+    var name: String { get }
+    var bundleIdentifier: String { get }
+    var url: URL { get }
+}
+
+public struct AnyApp: AppProtocol
+{
+    public var name: String
+    public var bundleIdentifier: String
+    public var url: URL
+    
+    public init(name: String, bundleIdentifier: String, url: URL)
+    {
+        self.name = name
+        self.bundleIdentifier = bundleIdentifier
+        self.url = url
+    }
+}
+
+extension ALTApplication: AppProtocol
+{
+    public var url: URL {
+        return self.fileURL
+    }
+}
+
+extension StoreApp: AppProtocol
+{
+    public var url: URL {
+        return self.downloadURL
+    }
+}
+
+extension InstalledApp: AppProtocol
+{
+    public var url: URL {
+        return self.fileURL
+    }
+}