Fix example scenes (#757)

Author: morgane

sdkproject/Assets/Mapbox/Examples/2_ZoomableMap/ZoomableMap.unity

@@ -243,7 +243,7 @@ Prefab:
     - target: {fileID: 224835413515161394, guid: 98be219873e6d4dffb5949746f515a33,
         type: 2}
       propertyPath: m_AnchoredPosition.y
-      value: -56.40388
+      value: -57.82929
       objectReference: {fileID: 0}
     - target: {fileID: 224835413515161394, guid: 98be219873e6d4dffb5949746f515a33,
         type: 2}
@@ -253,12 +253,12 @@ Prefab:
     - target: {fileID: 224835413515161394, guid: 98be219873e6d4dffb5949746f515a33,
         type: 2}
       propertyPath: m_SizeDelta.y
-      value: 92.80776
+      value: 95.65858
       objectReference: {fileID: 0}
     - target: {fileID: 224857786874416376, guid: 98be219873e6d4dffb5949746f515a33,
         type: 2}
       propertyPath: m_SizeDelta.y
-      value: 112.80776
+      value: 115.65858
       objectReference: {fileID: 0}
     - target: {fileID: 224907856650798614, guid: 98be219873e6d4dffb5949746f515a33,
         type: 2}
@@ -494,9 +494,12 @@ MonoBehaviour:
         wallMaterial: {fileID: 0}
   _vectorData:
     _layerProperty:
-      sourceType: 3
+      tileJsonData:
+        tileJSONLoaded: 0
+        LayerDisplayNames: []
+      _sourceType: 1
       sourceOptions:
-        isActive: 0
+        isActive: 1
         layerSource:
           Name: Mapbox Streets
           Id: mapbox.mapbox-streets-v7
@@ -512,6 +515,7 @@ MonoBehaviour:
         isEnabled: 1
         entityPerCoroutine: 20
       vectorSubLayers: []
+      locationPrefabList: []
   _tileProvider: {fileID: 0}
 --- !u!4 &555018384
 Transform: