This adds a hover handler which will preview images
from within project resource.
Change-Id: I88bcb56a977e41ed4dc5bfe165e2c80d4396a21f
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: David Schulz <david.schulz@qt.io>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
