add support for links between YSA and Allärs (and partially MUSA/CILLA)
Merge branch 'master' of https://github.com/NatLibFi/Finto-data
adapt to MUSA/CILLA
link semantic relations also via altLabels, with warnings
script for intelinking YSA and Allärs
Merge branch 'master' of https://github.com/NatLibFi/Finto-data
YSA, Allärs: add also links to YSO concepts
Merge branch 'master' of https://github.com/NatLibFi/Finto-data