Author affiliations

Added affiliations for all authors. Is a HW function that previously only delivered affiliation for first author only
Linkout xml file added

Example is PoA file.
Missing portions assume currently:
<ProviderId>ProviderId assigned by NCBI(required)</ProviderId>
        <IconUrl>URL of icon to be displayed on database records(required)</IconUrl>
        <ObjectSelector>
            <Database>NCBI database in which links will appear(required)</Database>
            <ObjectList>
                <Query>Search retrieving records to be linked(repeatable,
                    required unless <ObjId> is specified</Query>
            </ObjectList>
        </ObjectSelector>
Link out provider xml

<ProviderId>NCBI to provide</ProviderId>
Missing element.