Regime file parsing

[gianderiu]

Looking at the parsing of the regime file, in utils.py,
https://github.com/pulp-platform/nemo/blob/master/nemo/utils.py#L111
it seems there is a bit of confusion with the parameters:
x_bit_stop_condition
W_bit_stop_condition
x_bit_scaler
W_bit_scaler
Some of them are stored under the level '0' some other into the root level.
It is not clear what is the hierarchy and whether the parameters at root level overwrite the parameters at level '0'.

[FrancescoConti]

Hi @gianderiu, you are obviously right. In fact, all this part of NEMO necessitates some cleanup. I will work on this asap.