[501569] The cascading filter does not hide merged cascading diffs

Add new adapter (MatchOfContainmentDiffAdapter) to Matches related to
containment diff.
Use this adapter to fix bug 501569 on the cascading filter.

Bug: 501569
Change-Id: Ie07bf3be141b656ca53f526960cdb1ff9cf0b2f4
Signed-off-by: Axel Richard <axel.richard@obeo.fr>
10 files changed