add new two graphs for data analysis view.
add quater analysis csv data file.
add year edge analysis data csv file.
implement javascript functions to draw edge analysis charts.
modify the edge analysing graph drawing function
modify the edge analysing graph drawing function
change the data.csv to cc_overall_data.csv for give meaningful idea.
change the cc data representation file name in configurations.
readme update with information of source data file. in purpose of future
enhancements.
Merge branch 'master' of https://github.com/tharindu99/visualizer.git
updated readme with text formats

set the sentences indents properly.
Merge pull request #59 from tharindu99/master

updated with quarterly and yearly edges analysis graphs.