snowmicropyn v1.1.0

This version brings a thorough refactoring in order to offer a clean interface for implementing new parameterizations (density, SSA) by lifting the burden of having to deal with the GUI (everything is automatic now). Three new parameterizations were added (Calonne/Richter and King x2), as well as an export tool for niViz visualizations. The documentation was overhauled and a few bugs and usability issues were fixed.