Implement Map component

[florblue]

Implement a Map component that receives a list of nodes with a geolocalization data field and reder them into a map.
When you click on a node into the map, the node data will be displayed.
Also you can click on the map to add a new marker. Then you have to be redirected to the node register form. This feature has to be enable by prop.

• Integrate with React Leaflet library
• Use Open Street Maps