#22 Migrate CollaborationViewer from DeltaViewer of MagnetRONFrame. ...

Create MagnetRONViewer#getRelatedInformation return value is reference
and FieldName.

#22 Implement CollaborationViewer#doLastAnimation, ...

createEdgeToObject, createObjectVertices.
Migrated method from DeltaViewer to MagnetRONViewer and
CollaborationViewer.
Add CollaborationViewerSampleTest.

Implement CollaborationObjectCallGraph#merge(ExtractedStructure) ...

that uses lowestCommonAncestor.
Rename CollaborationAliasCollector#sortAliasListByTimeStamp() from
sort().
Add CollaborationObjectCallGraph#sortTracePointByTimeStamp()and test
file.