添加卫星图和高程图

public/models/dam/license.txt

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+Model Information:
+* title:	El Pontón de la Oliva | PATONES, MADRID
+* source:	https://sketchfab.com/3d-models/el-ponton-de-la-oliva-patones-madrid-eb3cb2b70a8d439aa8abf598989315c3
+* author:	Arqueomodel3D (https://sketchfab.com/juanbrualla)
+
+Model License:
+* license type:	CC-BY-4.0 (http://creativecommons.org/licenses/by/4.0/)
+* requirements:	Author must be credited. Commercial use is allowed.
+
+If you use this 3D model in your project be sure to copy paste this credit wherever you share it:
+This work is based on "El Pontón de la Oliva | PATONES, MADRID" (https://sketchfab.com/3d-models/el-ponton-de-la-oliva-patones-madrid-eb3cb2b70a8d439aa8abf598989315c3) by Arqueomodel3D (https://sketchfab.com/juanbrualla) licensed under CC-BY-4.0 (http://creativecommons.org/licenses/by/4.0/)