Satelitte data is here!

This is a very big change, that now allows having both point and satellite observations. A other very big change is how things are randomized. Now there are specific seed values for all aspects that can contain randomization.Things are still very preliminary, and instead of updating the old functions I created new ones labelled _22. Importantly, the new functions are not backwards compatible! Variance reduction code is also still only preliminary. I also dropped support of the modified shallow water model for now.