fix gif caching

Pocket Poster/Packages/GIFImage/Sources/model/RawImage.swift

@@ -0,0 +1,44 @@
+//
+//  File.swift
+//  
+//
+//  Created by Igor Ferreira on 05/04/2022.
+//
+
+import ImageIO
+import SwiftUI
+#if os(macOS)
+import AppKit
+public typealias RawImage = NSImage
+#else
+import UIKit
+public typealias RawImage = UIImage
+#endif
+
+public extension RawImage {
+    static func create(with cgImage: CGImage) -> RawImage {
+        #if os(macOS)
+        return RawImage(cgImage: cgImage, size: NSSize(width: cgImage.width, height: cgImage.height))
+        #else
+        return RawImage(cgImage: cgImage)
+        #endif
+    }
+
+    static func create(symbol: String) -> RawImage? {
+        #if os(macOS)
+        return RawImage(systemSymbolName: symbol, accessibilityDescription: nil)
+        #else
+        return RawImage(systemName: symbol)
+        #endif
+    }
+}
+
+public extension Image {
+    static func loadImage(with image: RawImage) -> Image {
+        #if os(macOS)
+        return Image(nsImage: image)
+        #else
+        return Image(uiImage: image)
+        #endif
+    }
+}