Need a better way to source paths and extend classes

[saikrishnarallabandi]

Given the number of tasks and the dependencies, we dont wat this to be an installable thing. A docker image is a better way. In that case, need a way to refer classes. Right now sys.path is being used. I

Example: https://github.com/saikrishnarallabandi/falkon/blob/master/tasks/speech/self_assessed_affect/baseline/local/seqmodels/baseline.py

Its not neat.