[Framework] Feed item filtering in the Feed List view (#11)

This PR contains the work done to implement the filtering of the items shown in the `FeedListViewController` view controller by star rating.

Reviewed-on: rock-n-code/app-reviews#11
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>

Libraries/UI/Kit/Sources/Extensions/String+Icons.swift

@@ -10,9 +10,18 @@ public extension String {
     enum Icon {
         
         // MARK: Constants
-        static let questionMark = "questionmark.circle.fill"
-        
         public static let info = "info.circle.fill"
         public static let person = "person.crop.circle.fill"
+        public static let starAll = "a.circle"
+        public static let star1 = "1.circle"
+        public static let star2 = "2.circle"
+        public static let star3 = "3.circle"
+        public static let star4 = "4.circle"
+        public static let star5 = "5.circle"
+        
+        static let filter = "camera.filters"
+        static let questionMark = "questionmark.circle.fill"
+        static let star = "star"
+        static let starFill = "star.fill"
     }
 }

Libraries/UI/Kit/Sources/Extensions/UIImage+ICons.swift

@@ -0,0 +1,19 @@
+//
+//  UIImage+ICons.swift
+//  ReviewsUIKit
+//
+//  Created by Javier Cicchelli on 20/03/2024.
+//  Copyright © 2024 Röck+Cöde VoF. All rights reserved.
+//
+
+import UIKit
+
+public extension UIImage {
+    enum Icon {
+        
+        // MARK: Constants
+        public static let filter = UIImage(systemName: .Icon.filter)
+        public static let star = UIImage(systemName: .Icon.star)
+        
+    }
+}