Merge pull request #659 from Iterable/evan/MOB-11561-enableEmbeddedMessaging-flag-iOS

[MOB-11561] iOS: adds enableEmbeddedMessaging flag to config

Author: evantk91

ios/RNIterableAPI/Serialization.swift

@@ -92,7 +92,10 @@ extension IterableConfig {
                 config.dataRegion = IterableDataRegion.US
             }
         }
-        
+
+        if let enableEmbeddedMessaging = dict["enableEmbeddedMesssaging"] as? Bool {
+            config.enableEmbeddedMessaging = enableEmbeddedMessaging
+        }
 
         return config
     }