Draft implementation of snakemake

[davide-f]

In this PR, a draft implementation of a snakemake workflow is proposed.

In particular, the following tasks have been developed and tested:

1. Creation of a stable environment compatible with snakemake (linux only)
2. Development of a snakemake workflow
3. Implementation of rules for:

• Install CycleGan
• downloading data from gdrive
• Simple train and test with cyclegan

A sample snakemake execution to test the above is:

snakemake -j1 datasets/cycletestduke2bangladesh

The above command will launch all the mentioned rules specified above.
This is a draft version and obviously needs improvements, yet I think it can be a solid base

In my opinion, it is missing:

• add a standardized method to generate options and sensitivities
• add additional workflows (e.g. using detectron2 and the other features we are using)
• add a methodology to manage multiple gpus