Saarland Seta2016 NTv2 grid can be included

[rouault]

Got confirmation from lvgl.saarland.de that the Seta2016 dataset can be distributed under the terms of CC BY 4.0:
Home page: https://www.saarland.de/74918.htm
Download link: https://www.saarland.de/dokumente/thema_lkvk2/SeTa2016.zip

Received: from wexclsaar314.saarland.de ([fe80::bc25:e876:b5b3:46e6]) by
 wexclsaar314.saarland.de ([fe80::bc25:e876:b5b3:46e6%21]) with mapi id
 15.01.1779.002; Fri, 6 Dec 2019 13:25:49 +0100
Subject: AW: AW: Lizenz von SeTa2016.zip ?
Date: Fri, 6 Dec 2019 12:25:49 +0000

 <{redacted}@lvgl.saarland.de>
Dear Mr. Rouault,
as my colleague Ms. Schmitt has already answered, there are no formal licensing requirements for the Seta 2016 transformation parameters.
However, the naming of the license CC BY 4.0 can be applied analogously in case of a transfer.

Mit freundlichen Grüßen

{redacted}

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