Lightning module vs. torch model standardization

[gumityolcu]

Currently some classes don't expect a lightning module(ClassDetection benchmark for example) and there are some discrepancies within classes (LDS benchmark should be expecting both and checking that trainer and model objects are both Lightning or both plain torch).

We should go through the code and make sure to unify this

[gumityolcu]

Another example: Metrics require torch.nn.Module but we allow for Benchmarks to pass Lightning modules to metrics