This function plots the runs scored by the batsman over the career as a time
series. A loess regression line is plotted on the moving average of the batsman
the batsman
Usage
batsmanMovingAverage(df, name= "A Leg Glance",dateRange,staticIntv=1)
if (FALSE) {
#Get the data frame for Kohlikohli <- getBatsmanDetails(team="India",name="Kohli",dir=pathToFile)
batsmanMovingAverage(kohli,"Kohli",dateRange)
}