Bug 25030: Implement IncludeSeeFromInSearches with Elasticsearch

Bug 25030: Implement IncludeSeeFromInSearches with Elasticsearch

Test plan:
1. Create an authority with at least a 1XX$a and a 4XX$a, for instance:
    100 $a Foo
    400 $a Bar
2. Create a biblio and add a link to this authority using the
   cataloguing plugin
3. Disable syspref IncludeSeeFromInSearches
4. Reindex the biblio. You should be able to find it when searching
   'Foo' but not when searching 'Bar'
5. Enable syspref IncludeSeeFromInSearches
6. Reindex the biblio. You should be able to find it when searching
   'Foo' and also when searching 'Bar'
   without the patch, 'Bar' doesn't yeld results. With it, it does.
7. prove t/db_dependent/Koha/SearchEngine/Elasticsearch.t

Signed-off-by: Séverine QUEUNE <severine.queune@bulac.fr>
Signed-off-by: Lucy Vaux-Harvey <lucy.vaux-harvey@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>