refactor(default remote image service factory): added default parameter value

Author: Christian Elies

Sources/RemoteImage/public/Services/DefaultRemoteImageServiceFactory.swift

@@ -5,8 +5,10 @@
 //  Created by Christian Elies on 29.10.19.
 //
 
+import Foundation
+
 public final class DefaultRemoteImageServiceFactory {
-    public static func makeDefaultRemoteImageService(remoteImageURLDataPublisher: RemoteImageURLDataPublisher) -> DefaultRemoteImageService {
+    public static func makeDefaultRemoteImageService(remoteImageURLDataPublisher: RemoteImageURLDataPublisher = URLSession.shared) -> DefaultRemoteImageService {
         let dependencies = DefaultRemoteImageServiceDependencies(remoteImageURLDataPublisher: remoteImageURLDataPublisher)
         return DefaultRemoteImageService(dependencies: dependencies)
     }