[Library] Coordination library (#15)

This PR contains the work done to implement the necessary protocols and router to implement the Coordinators pattern in the app.

Reviewed-on: rock-n-code/app-reviews#15
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>

Libraries/Coordination/Kit/Sources/Routers/WindowRouter.swift

@@ -0,0 +1,35 @@
+//
+//  WindowRouter.swift
+//  ReviewsCoordinationKit
+//
+//  Created by Javier Cicchelli on 21/03/2024.
+//  Copyright © 2024 Röck+Cöde. All rights reserved.
+//
+
+import UIKit
+
+public class WindowRouter: Router {
+    
+    // MARK: Constants
+    private let window: UIWindow?
+    
+    // MARK: Initialisers
+    public init(window: UIWindow?) {
+        self.window = window
+    }
+    
+    // MARK: Functions
+    public func present(
+        _ viewController: UIViewController,
+        animated: Bool,
+        onDismiss: OnDismissClosure?
+    ) {
+        window?.rootViewController = viewController
+        window?.makeKeyAndVisible()
+    }
+    
+    public func dismiss(animated: Bool) {
+        // Nothing to do here...
+    }
+    
+}