v4.1.0 webtrees 2.2 compatibility

webtrees 2.2 Compatibility

• Adjusted module to webtrees API changes in webtrees 2.2
• Module is still compatible to webtrees 2.1 and PHP 7.4

New Features:

• Added Gedcom import/export filter to convert multiple surnames into one

Languages:

• Updated Dutch translation contributed by @TheDutchJewel