KnowledgeBase

added a method to obtain viaf alternative names.
it will be called at the of the mapping process - once for every viaf person record existing in the knowledge base, and not once for every record being mapped. 
[SYATE-49]


git-svn-id: https://svn.man.poznan.pl/svnroot/synat/A10/software@546 7cf39abc-cf8c-11df-9ef5-d97d1e642de8