Consolidate images and files

CHDataManagement/Storage/Model/FileDescriptions.swift

@@ -0,0 +1,13 @@
+
+struct FileDescriptions {
+
+    let fileId: String
+
+    let german: String?
+
+    let english: String?
+}
+
+extension FileDescriptions: Codable {
+    
+}

CHDataManagement/Storage/Model/FileOnDisk.swift

@@ -10,7 +10,7 @@ struct FileOnDisk {
 
     init(image: String, url: URL) {
         let ext = image.fileExtension!
-        let type = ImageType(fileExtension: ext)!
+        let type = ImageFileType(fileExtension: ext)!
         self.type = .image(type)
         self.url = url
         self.name = image

CHDataManagement/Storage/Model/ImageDescriptions.swift

@@ -1,13 +0,0 @@
-
-struct ImageDescriptions {
-
-    let imageId: String
-
-    let german: String?
-
-    let english: String?
-}
-
-extension ImageDescriptions: Codable {
-    
-}