New parameters have been added to define the input of the models:
* ResizeOperation: by default center-crop was being performed, now it is
configurable.
* InputOrder: by default RGB was being used as the order for the array
values of the input tensor, now it can be configured.
* InputInterval has been changed to InputIntervals (an slice). This
means that every channel can have its own interval conversion.
* InputInterval can define now stddev and mean, because sometimes
instead of adjusting the interval, the stddev and mean of the training
data should be use.
