v0.2 - CIFAR-100 and new models

This release adds the following new leaderboards:

• CIFAR-100 Linf
• CIFAR-100-C (common corruptions)

Moreover, it adds to the model zoo:

• 7 new models for CIFAR-10 Linf (28 in total)
• 2 new models for CIFAR-10 L2 (11 in total)
• 10 new models for CIFAR-100 Linf (10 in total)
• 2 new models for CIFAR-100-C (2 in total)

It also fixes some bugs and improves some internals:

• The the common corruptions datasets are now downloaded from the original Zenodo repositories, instead of Google Drive
• The benchmark function now raises a working if it is run on a model which is not in .eval() mode