Item View: main layout

[mark-dce]

• [x] Show the image on the left half of the screen
• [x] Display metadata to the right of the image: title, creator, date created, first description element
• [x] Display course collections the image is a member of
• [x] names of course collections should be clickable links to the corresponding collection show page
• [x] if the image is not part of any course collections the field should display the text 'none' without any links