added styleFunction property to ChoroplethMap
Added example for using ChoroplethMap styleFunction
added events for leaflet mouseover, mouseout and click into ChoroPlethMap. UI5 event names are: mapmouseover, mapmouseout and mapclick
added examples for ChoroplethMap custom events into map.html
added properties draggable and zoomable to ChoroplethMap
example using draggable and zoomable on ChoroplethMap
added properties centerLat, centerLng and zoom to ChoroplethMap
Example using centerLat, centerLng and zoom
Fix setting Draggable and Zoomable when ChoroplethMap not displayed yet. This happens e.g. when giving values in the constructor
Example for multiple ChoroplethMaps at the same time