Fact of reindexing subobjects when object is indexed is not connected with
particular portal type, but with group of objects.

With this interactor it is possible to move away from spaghetti code in
classes which are overriding reindexObject to do only one thing - reindex
subobjects.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@36971 20353a03-c40f-0410-a6d1-a30d3c3de9de