Add UQ evaluation while running the ASE calculator

[abmazitov]

While running simulations and energy evaluations with the ASE MetatomicCalculator, it would be cool to have an option to run the MD (or basically to any model evaluation) UQ-aware. Meaning - if the UQ capabilities are there in the model, one can run set some kind of uncertainty_threshold as an input parameter of the model, which by default is None. If it's not None, then the UQ is evaluated and the warning is raised if the predicted uncertainty breaks the threshold.

[frostedoyster]

See #67