Fetch available models from Web IO repositories.

[achillesrasquinha]

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Is your feature related to a problem? Please describe it.

Describe the solution you would like.

Would be nice to have a model list of each repository to the Web IO repositories.

bigg = BiGGModels()
models_avail = bigg.model_list() # id list of models available.

Describe alternatives you considered

Additional context

[cdiener]

Yeah, would be useful. Can you see a way to do that quickly? For instance, Biomodels is huge...