Implement the new revamped CSV data module design

[SasinduDilshara]

There is API design changes in the APIS of the CSV data module. The new design can be found in here. https://docs.google.com/document/d/18r8PIBqI8C3H71VwJMFDb3xe9yCFgm9rS2Vx7tdTVaQ/edit?usp=sharing

This issue is created to track the new implementation