CMS-1953 Create initial classes for building a simple form with one TextLine input
Getting more of persistNewItem to work
Had to know parent content path when persisting so now a ContentWizardPanel must know the parent content that we are creating a content for.
For new content this was easy since we could pass in the selected content was the parent content
For edit content I parsed content path of the content to edit and then requested the  content of the parent path