Transposing dimensions in the construction of EventSeries objects

[Lucy967]

We're currently trying to use pyunicorn and found a small potential bug in the EventSeries init function. In the case that input data isn't already preprocessed, we go into the else clause shown in the screenshot. Inside the else clause, the dimensions are transposed if there are fewer time steps than spatial grid points - which is the case for us. We don't know if or why this transposition is necessary and think it's counterintuitive given the doc strings in the functions.