Containerizing Niffler

[pradeeban]

Currently, Niffler png-extraction is containerized (#262). However, other modules are not containerized. What we propose is a global Niffler container from where different modules can be executed.

While this can be a challenging undertaking (considering the multiple modules of Niffler and dependencies on our sibling frameworks such as Eaglescope for the visualizations), an attempt at this will help us expand the user base and also will help us improve the framework itself in its compactness.