Init new way to add gpx file -> using mapview

Create MKMapView subclass, handle right click to get coordinates clicked
New class to contain annotation + complete address components
Update project
Implement all behaviors for the Map 'system'

- Get complete address from coordinates
- Show the annotation on the map
- Display the complete address

TODO:
- Generate GPX file from map datas
- reset interfaces when close it both tabItems)
Implement the way to generate gpx file from a map
Optimize a bit the annotations removal
Update README

+ License