Expose some of the useful chart properties #7
Description
Since JavaScript properties shouldn't always be accessed (no "private"s), it might be better to restrict some access. Users can always call the *js.Object functions if they really want a property too.
Some properties that will definitely be useful are the Values properties for example. This will allow users to do things such as searching for a value in the Values properties and then deleting it from the values via chart.RemovePoint(index).