Secure backup: Allow to execute a random closure the secure backup is unlocked

Only from swift.
We should change the name "SecretsRecovery" classes

Riot/Modules/Secrets/Recover/SecretsRecoveryGoal.swift

@@ -16,10 +16,28 @@
 
 import Foundation
 
+enum SecretsRecoveryGoal {
+    case `default`
+    case keyBackup
+    /// Unlock the secure backup (4S) to get the private key and execute a closure during the flow
+    case unlockSecureBackup ((_ privateKey: Data, _ completion: @escaping (Result<Void, Error>) -> Void) -> Void)
+    case verifyDevice
+    case restoreSecureBackup
+}
+
 @objc
-enum SecretsRecoveryGoal: Int {
+enum SecretsRecoveryGoalBridge: Int {
     case `default`
     case keyBackup
     case verifyDevice
     case restoreSecureBackup
+    
+    var goal: SecretsRecoveryGoal {
+        switch self {
+        case .default: return .default
+        case .keyBackup: return .keyBackup
+        case .verifyDevice: return .verifyDevice
+        case .restoreSecureBackup: return .restoreSecureBackup
+        }
+    }
 }