Add Defaults library

Extensions/AVKeyValueStatus+String.swift

@@ -1,20 +0,0 @@
-import AVFoundation
-
-extension AVKeyValueStatus {
-    var string: String {
-        switch self {
-        case .unknown:
-            return "unknown"
-        case .loading:
-            return "loading"
-        case .loaded:
-            return "loaded"
-        case .failed:
-            return "failed"
-        case .cancelled:
-            return "cancelled"
-        @unknown default:
-            return "unknown default"
-        }
-    }
-}