[ADF-2563] Improve versioning functionality (#3335)

* change input with textarea

* update file version use now the update content API

* provide way to test read only mode version list

* fix test

* test fix

lib/content-services/upload/components/base-upload/upload-base.spec.ts

@@ -59,8 +59,6 @@ describe('UploadBase', () => {
         fixture = TestBed.createComponent(UploadTestComponent);
         uploadService = TestBed.get(UploadService);
 
-        spyOn(FileModel.prototype, 'generateId').and.returnValue('test');
-
         component = fixture.componentInstance;
         fixture.detectChanges();
     });