Fix in FuchsiaUtilsTest
Correct reconfigure in DefaultImportationLinker

Correctly handle the reconfiguration of the properties Filter_ImportDeclaration
and Filter_ImporterService.
The sets of ImportDeclaration and ImporterService are updated to be consistents
with the new filter.
The update of the Target properties of the ImporterService now update the set of
ImportDeclaration which are binded to them.

Add tests related to theses features in DefaultImportationLinkerTest.