1,优化URL报错,2,更新OFD组件 3,美化Excel 4,文本方法关闭字节流 5,新增多种类型文件预览 (#419)

1,优化URL报错
2,更新OFD组件
3,美化Excel
4,文本方法关闭字节流
5,新增xmind、eml、epub、"obj", "3ds", "stl", "ply", "off", "3dm", "fbx", "dae", "wrl", "3mf", "ifc","glb","o3dv","gltf","stp","bim","fcstd","step","iges","brep"格式

Co-authored-by: gaoxiongzaq <admin@cxcp.com>

server/src/main/resources/static/website/assets/envmaps/fishermans_bastion/readme.txt

@@ -0,0 +1,13 @@
+Author
+======
+
+This is the work of Emil Persson, aka Humus.
+http://www.humus.name
+
+
+
+License
+=======
+
+This work is licensed under a Creative Commons Attribution 3.0 Unported License.
+http://creativecommons.org/licenses/by/3.0/