HighchartsSeriesOptions update

HighChartsSeriesOptions should have the access to the same properties as the Series Chart object. 

Based on http://api.highcharts.com/highcharts#series 

"The actual series to append to the chart. In addition to the members listed below, any member of the plotOptions for that specific type of plot can be added to a series individually. For example, even though a general lineWidth is specified in plotOptions.series, an individual lineWidth can be specified for each series."

This means the SeriesOptions should have access to properties such as color, animation etc which exist in the series chart object.

highcharts/highcharts.d.ts

@@ -887,7 +887,7 @@ interface HighchartsDataPoint {
     y?: number;
 }
 
-interface HighchartsSeriesOptions {
+interface HighchartsSeriesOptions extends HighchartsSeriesChart{
     data?: any[]; // [value1,value2, ... ] | [[x1,y1],[x2,y2],... ] | HighchartsDataPoint[]
     index?: number;
     legendIndex?: number;