feat: MDC (and update generated localizations and project file)

AltStoreCore/Extensions/UserDefaults+AltStore.swift

@@ -50,6 +50,10 @@ public extension UserDefaults
     @NSManaged var trustedServerURL: String?
     
     @NSManaged var unstableFeatures: Data?
+    #if MDC
+    @NSManaged var hasPatchedInstalldEver: Bool
+    @NSManaged var lastInstalldPatchBootTime: Date?
+    #endif
     
     var activeAppsLimit: Int? {
         get {
@@ -82,6 +86,7 @@ public extension UserDefaults
             #keyPath(UserDefaults.isConsoleEnabled): false,
             #keyPath(UserDefaults.isDebugLoggingEnabled): false,
             #keyPath(UserDefaults.onboardingComplete): false,
+            #keyPath(UserDefaults.hasPatchedInstalldEver): false,
             #keyPath(UserDefaults.isBackgroundRefreshEnabled): true,
             #keyPath(UserDefaults.isLegacyDeactivationSupported): isLegacyDeactivationSupported,
             #keyPath(UserDefaults.activeAppLimitIncludesExtensions): activeAppLimitIncludesExtensions,

AltStoreCore/Model/InstalledApp.swift

@@ -12,8 +12,21 @@ import CoreData
 import AltSign
 import SemanticVersion
 
-// Free developer accounts are limited to only 3 active sideloaded apps at a time as of iOS 13.3.1.
-public let ALTActiveAppsLimit = 3
+public extension InstalledApp
+{
+    // Free developer accounts are limited to only 3 active sideloaded apps at a time as of iOS 13.3.1. However, the MDC exploit allows you to have 10 per Apple ID/SideStore instance.
+    static var freeAccountActiveAppsLimit: Int {
+        #if MDC
+        if CowExploits.installdHasBeenPatched {
+            return 10
+        } else {
+            return 3
+        }
+        #else
+        return 3
+        #endif
+    }
+}
 
 public protocol InstalledAppProtocol: Fetchable
 {

AltStoreCore/Model/Migrations/Policies/InstalledAppPolicy.swift

@@ -50,7 +50,7 @@ class InstalledAppToInstalledAppMigrationPolicy: NSEntityMigrationPolicy
             
             // We can assume there is an active app limit,
             // but will confirm next time user authenticates.
-            UserDefaults.standard.activeAppsLimit = ALTActiveAppsLimit
+            UserDefaults.standard.activeAppsLimit = InstalledApp.freeAccountActiveAppsLimit
         }
         
         return NSNumber(value: isActive)