Add Time-dependent Instrument Response Function to IRISpy

This project is about adding a very practical functionality to the IRISpy package which is built on top of Sunpy’s ndcube package. IRISpy provides functionalities for the analysis of observations from NASA's Interface Region Imaging Spectrograph (IRIS) satellite which looks at UV emission from the solar chromosphere in particular. The proposed new features will give scientists far greater power and ability to perform IRIS data analysis in Python, as well as to make new discoveries regarding the energetics and dynamics of the solar chromosphere and transition region than previously could.