change getLazySimilarityMatches and getLazySimilarityMatchesByFeatureIds to speed up loading similarity and polypeptide domains that are featureLoc'ed


git-svn-id: svn+ssh://svn.internal.sanger.ac.uk/repos/svn/pathsoft/artemis/trunk@8882 ee4ac58c-ac51-4696-9907-e4b3aa274f04