* All modifiers take a dict (info_blob) as an input now, which has the old values as keys, e.g. xs is now info_blob["xs"]
* mc_info for the modifiers is now called y_values
* key_mc_info is now called key_y_values
* key_samples is now called key_x_values

Other changes:
* Rework generator
* Added Resnet Blocks