Add file attachment to 'add campaign match' form.
Add Storage singleton for managing file uploads.
Save uploaded campaign screenshot in uploads folder.
Change name of saved image attachment.
Store saved image name in database.
Don't store filename in database, when no image was uploaded.
Merge branch 'feature-campaign-match-image'
Add option to include image when creating versus match.
Merge branch 'feature-versus-match-image'