Streamline API by using IConvertible.

[vpenades]

I've noticed there's a current repetition of APIs that can be greatly simplified...

Let's take Scatter.X for example:

        public static Box<IScatterProperty> x(Literals.PlotData[] values);
        
        public static Box<IScatterProperty> x(IEnumerable<bool[]> values);

        public static Box<IScatterProperty> x(int val);
        public static Box<IScatterProperty> x(bool val);
        public static Box<IScatterProperty> x(float val);
        public static Box<IScatterProperty> x(string val);
        public static Box<IScatterProperty> x(DateTime val);

        public static Box<IScatterProperty> x(params int[][] values);
        public static Box<IScatterProperty> x(params bool[][] values);
	public static Box<IScatterProperty> x(params float[][] values);
        public static Box<IScatterProperty> x(params string[][] values);

        public static Box<IScatterProperty> x(IEnumerable<IEnumerable<int>> values);
        public static Box<IScatterProperty> x(IEnumerable<IEnumerable<float>> values);
        public static Box<IScatterProperty> x(IEnumerable<IEnumerable<string>> values);

        public static Box<IScatterProperty> x(IEnumerable<int?> values);
        public static Box<IScatterProperty> x(IEnumerable<bool?> values);
        public static Box<IScatterProperty> x(IEnumerable<float?> values);
        public static Box<IScatterProperty> x(IEnumerable<DateTime?> values);

        public static Box<IScatterProperty> x(List<int[]> values);
        public static Box<IScatterProperty> x(List<bool[]> values);
        public static Box<IScatterProperty> x(List<float[]> values);
        public static Box<IScatterProperty> x(List<string[]> values);

        public static Box<IScatterProperty> x(IEnumerable<int> values);
        public static Box<IScatterProperty> x(IEnumerable<bool> values);
        public static Box<IScatterProperty> x(IEnumerable<float> values);
        public static Box<IScatterProperty> x(IEnumerable<string> values);
        public static Box<IScatterProperty> x(IEnumerable<DateTime> values);       

This API could be greatly simplified by using the IConvertible interface.

        public static Box<IScatterProperty> x(T)(T val) where T:IConvertible;

	public static Box<IScatterProperty> x(T)(IEnumerable<T> val) where T:IConvertible;

	public static Box<IScatterProperty> x(T)(IEnumerable<T?> val) where T:struct, IConvertible;

	public static Box<IScatterProperty> x(T)(IEnumerable<T[]> val) where T:IConvertible;

	public static Box<IScatterProperty> x(T)(params T[] val) where T:IConvertible;

Since IConvertible is defined in all the BCL types; int, double, float, DateTime, bool, string, it could greatly simplify the whole API, allowing more compatible types, and also providing more flexibility to mix & match types.