Description

Replaces the old charting plugin with Highcharts

Type of change

[X] I have performed a self-review of my own code
[x] I have commented my code, particularly in hard-to-understand areas
[x] I have made corresponding changes to the documentation (readme)
[X] My changes generate no new warnings or errors
[X] I have added tests/examples that prove my fix is effective or that my feature works
[X] New and existing lint guidelines/tests/examples pass with my changes (run npm test locally)