feat: move data analysis to front-end, improve flexibility and UX
- Remove old back-end data analysis and charting -> Reduces the load on the server
- Generate charts automatically in the front-end using D3.js -> Better UX
- Add test info along chart -> Better understanding and ability to access Test info through the TestManager singleton rather than deduce it from results in DB
- Improve analysis flexibility: No need to name systems sys1, sys2 etc.
- Charts can be downloaded as both png & svg