Allow passing in game arguments from the launcher
OpenMW allows passing in "game arguments":https://wiki.openmw.org/index.php?title=Testing#Game_Arguments to aid in testing. For instance:
openmw --skip-menu --start="Seyda Neen"
Add the ability to add these arguments in the Launcher. I imagine that this would be a text field that the user would just type in whatever, rather than being something Morrowind-specific.
(RM-3927 from redmine: created on 2017-06-19 by Will Herrmann, , closed on 2018-03-08 by nobody, duplicates #4345 (closed))