Add NewDummyTrafficManager functor

Sources/ElixxirDAppsSDK/Functors/NewDummyTrafficManager.swift

+import Bindings
+import XCTestDynamicOverlay
+
+public struct NewDummyTrafficManager {
+  public var run: (Int, Int, Int, Int) throws -> DummyTraffic
+
+  public func callAsFunction(
+    cMixId: Int,
+    maxNumMessages: Int,
+    avgSendDeltaMS: Int,
+    randomRangeMS: Int
+  ) throws -> DummyTraffic {
+    try run(cMixId, maxNumMessages, avgSendDeltaMS, randomRangeMS)
+  }
+}
+
+extension NewDummyTrafficManager {
+  public static let live = NewDummyTrafficManager {
+    cMixId, maxNumMessages, avgSendDeltaMS, randomRangeMS in
+
+    var error: NSError?
+    let bindingsDummyTraffic = BindingsNewDummyTrafficManager(
+      cMixId,
+      maxNumMessages,
+      avgSendDeltaMS,
+      randomRangeMS,
+      &error
+    )
+    guard let bindingsDummyTraffic = bindingsDummyTraffic else {
+      fatalError("BindingsNewDummyTrafficManager returned `nil` without providing error")
+    }
+    return .live(bindingsDummyTraffic)
+  }
+}
+
+extension NewDummyTrafficManager {
+  public static let unimplemented = NewDummyTrafficManager(
+    run: XCTUnimplemented("\(Self.self)")
+  )
+}