add Smart Village project results to ugl website

Item 1: Project report with download link (published on LGL homepage https://www.lgl-bw.de/export/sites/lgl/unsere-themen/Geoinformation/Galerien/Dokumente/Abschlussbericht_SmartVillages.pdf) Item 2: Demo Energielehrpfad (link online demo) https://3dweb.lgl-bw.de/3D/EEP-Wuestenrot/#/ Item 3: Demo 3D Web Anwendung https://3dweb.lgl-bw.de/3D/SmartVillages/#/ + link to a scientic publication

The project result is added.

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