Create DEUP-DepFAENet

[AlexDuvalinho]

In this PR, we performed the following changes:

• Import DepFAENet from disconnected_gnns Alvaro ✅
• Adapt DepFAENet (dropout, etc.) and pre-train it on full data ✅
• Re-train DepFAENet on selected adsorbates ✅
• Create deup-dataset using MC dropout depfaenet ✅
• Create Deup-DepFAENet ✅
• Train deup-depfaenet on deup-dataset ✅
• Active learning script to use deup-dataset ✅
• Fix imports issue ✅
• Allow FAENet Wrapper to keep track of hidden representations for active-learning part ✅
  CAREFUL: only store graph-level rep in deup-dataset from now on. Need to change it if we want to perform MC dropout again (related to deup-faenet)

Objective: push to uncertainty branch Deup-DepFAENet, because it is the model that we need to measure uncertainty of DepFAENet on the catalyst branch. (FAENet is not used to compute predictions, DepFAENet is).