【example】增加mapboxgl矢量瓦片叠加例子 ，缩小例子图片

【fix】修复leaflet tiledMapLayer.redraw方法可能不发请求的bug 及UT
【fix】修复oprnlayers TileSuperMapRest.options.extent参数不起作用的bug 及UT   review by liqian

Author: songyumeng

examples/locales/en-US/resources.js

@@ -444,6 +444,7 @@ window.examplesResources = {
         "title_mvtVectorLayer_mapboxStyle_4326": "OSM Style(MVT WGS84)",
         "title_mvtVectorLayer_mapboxStyle_lineStyle": "LineStyle Edit",
         "title_mvtVectorLayer_mapboxStyle_landuse": "Land Use",
+        "title_mvtVectorLayer_overlay": "MVT Overlay",
         "title_onlineSecurity": "Examples of Online SecurityManager",
         "title_onlineWebMap": "Be a backpacker in 2014",
         "title_osmBuildings": "Buildings Stereoscopic Effect of OpenLayers",

examples/locales/zh-CN/resources.js

@@ -387,6 +387,7 @@ window.examplesResources = {
         "title_mvtVectorLayer_mapboxStyle_4326": "风格动态切换",
         "title_mvtVectorLayer_mapboxStyle_lineStyle": "线样式编辑",
         "title_mvtVectorLayer_mapboxStyle_landuse": "土地利用",
+        "title_mvtVectorLayer_overlay": "矢量瓦片叠加",
         "title_onlineSecurity": "Online SecurityManager使用示例",
         "title_onlineWebMap": "2014当了一回背包客",
         "title_osmBuildings": "openlayers 建筑立体效果",

examples/mapboxgl/config.js

@@ -424,6 +424,14 @@ var exampleConfig = {
                         version: "9.1.0",
                         thumbnail: "mvtVectorTile_landuse.png",
                         fileName: "mvtVectorTile_landuse"
+                    },
+                    {
+                        name: "矢量瓦片叠加",
+                        name_en: "MVT overlay",
+                        localIgnore: true,
+                        version: "10.x.x",
+                        thumbnail: "mvtVectorTile_overlay.png",
+                        fileName: "mvtVectorTile_overlay"
                     }
                 ]
             },