[488618] Ignore missing image resources

Introduces a SafeAdapterFactoryItemDelegator, which is an
AdapterFactoryItemDelegator that catches MissingResourceExceptions on
calls of getImage(Object) and just returns null if an item provider in
the adapter factory throws such an exception.

Bug 488618
Change-Id: If7efa8f4a5d5d7fe6553e4e9459527ebc69890e1
Also-by: Mathias Schaefer <mschaefer@eclipsesource.com>
Signed-off-by: Philip Langer <planger@eclipsesource.com>
8 files changed