fix(manufacturer): change to contact not strict

src/Types/Item.ts

 import { TextBlock } from "./TextBlock";
-import { Contact } from "./Contact";
 import { XMLElement } from "../XMLElement";
 import { Identifications } from "./Identifications";
+import { ContactNotStrict } from "./ContactNotStrict";
 
 export class Item extends XMLElement {
   name: TextBlock;
   description: TextBlock;
-  manufacturer: Contact;
+  manufacturer: ContactNotStrict;
   model?: TextBlock;
   identifications: Identifications;
 
@@ -15,7 +15,7 @@ export class Item extends XMLElement {
 
     this.name = new TextBlock(options.name);
     this.description = new TextBlock(options.description);
-    this.manufacturer = new Contact(options.manufacturer);
+    this.manufacturer = new ContactNotStrict(options.manufacturer);
 
     if (options.model)
       this.model = new TextBlock(options.model);