new maps API

[beto-rodriguez]

Currently there is no easy way to add visuals to a geo map chart, also there is no way to animate the map when the chart data changes, this new API fixes both issues.

Breaking changes

Instead of

myMap.Values =  new Dictionary<string, double>
{
    ["mex"] = 10,
    ["ind"] = 12,
    ["kor"] = 10
};

Now we must:

myMap.Shapes =  new ObservableCollection<IMapShape>
{
    new HeatLand { Name = "mex", Value = 10 },
    new HeatLand { Name = "ind", Value = 12 },
    new HeatLand { Name = "kor", Value = 10 }
};

And every time we add/remove a new IMapShape to our collection or the Value property changes, the map will animate the change.