fix: expand mask variable within if statement (#76)
fix: place ipython and tkinter imports within try/except (#77)
fix: remove cartopy for slimmer build (#78)
fix: create mask for output gridded variables (#79)
refactor: set plot tick formatter to not use offsets (#79)
docs: updated structure of documentation (#80)
feat: add program for overwriting the GRACE/GRACE-FO index (#81)
feat: made creating the spatial sensitivity kernel optional to improve compute time (#81)
refactor: moved regular expression function to utilities (#81)
feat: Dynamically select newest version of granules for index (#82)
feat: include geocenter land sea in data (#83)
feat: add GSFC SLR 5x5 download function (#85)
feat: add logging for debugging level verbose output (#85)
fix: place index filename within try/except statement (#85)
feat: add option to replace degree 4 zonal harmonics with SLR (#86)
fix: version check for mission in GFZ ftp sync (#87)
feat: add spatial gradient programs (#87)
feat: added more time parsing for longer periods (#88)
refactor: use UCI for geocenter solutions (SLR still valid) (#88)