Created ChartBuilder to remove boilerplate chart code

-Added chart builder config file

- Updated grunt file with new files
Created simpleChart maker for column charts
- Added series and axis builders
- removed chart builder and config
Removed methods that will not be used in simple chart
Removed builders for simple chart
-options can bet by using existing chart api
Created SimpleChart Abstract base class
- Factored concrete charts into inheriting classes
Added tests for SimpleChart
SimpleChart defaults height and width to 500px and xAxis ticklabels display vertically
Updated documentation for simplecharts
Changed simplechart to wrap data in a dataset object
Merge branch 'develop' of https://github.com/ScottLogic/insight into develop
Fixed unneeded comment and curious data fields
Merge pull request #310 from tylerferguson/feature/SimpleCharts

Feature/simple charts