adds IterableDataRegion enum and data region value to IterableConfig

Author: [email protected]

swift-sdk/IterableConfig.swift

@@ -124,4 +124,7 @@ public class IterableConfig: NSObject {
 
     /// Set whether the SDK should store in-apps only in memory, or in file storage
     public var useInMemoryStorageForInApps = false
+    
+    /// Sets data region which determines data center and endpoints used by the SDK
+    public var dataRegion: DataRegion = DataRegion.US
 }

swift-sdk/IterableDataRegion.swift

@@ -0,0 +1,13 @@
+//
+//  File.swift
+//  
+//
+//  Created by [email protected] on 4/4/23.
+//
+
+import Foundation
+
+enum DataRegion {
+    static let US = "https://api.iterable.com"
+    static let EU = "https://api.eu.iterable.com"
+}