Apply slightly higher score to accepted terms

[acwittmann]

Hi,
as discussed in the meeting today, we agreed on also importing and unaccepted WoRMS terms into the term catalogue. For matching of terms with parameter names, it would then help to apply a higher scoring for the accepted WoRMS terms in case there are identical term names. We still preferably want to assign accepted terms to parameter names.
Cheers,
Astrid

[uschindler]

Hi Astrid,
I will tkae care of that. I will just need to add some boost factor for "accepted" and "PANGAEA accepted" terms in the query to elasticsearch. Based on @kitchenprinzessin3880 's code it should be easy to change (another SHOULD clause with a constant score boost)