sts.Cycle() has bugs

[PaoloRanzi81]

Hi, I am trying several components in sts_components.py.

They are all working, but sts.Cycle() is not. First, it complains that the Uniform distribution has no .mode() (see line 770 and 776 in sts_components.py). After deleting the .mode() hoping I had fixed the problem, it complains again at line 800 for missing "num_seasons" argument. At this point, I have no idea how to fix the bug...unfortunately