Update the way we deal with weather predictions.

[daniellengyel]

Right now we are using a dictionary with the hours of the predictions being the keys.

But, what happens if we want to predict more than 24 hours ahead ?

[Collectron]

We could refresh the dictionary for each passing hour, or create a dictionary of 3-4 days ahead using the weather service and use the dictionary accordingly to how much time has passed since the start of the MPC. We can't predict further that what the weather file allows us to do. Also we need to investigate what predicting for more than 6-8 hours ahead does, because the error of the models can make the MPC not work as intended.