Please add: autoexec.cfg -> exec user.cfg

An idea for improvement for the authors:
- When it doesn't exist, add the file "autoexec.cfg" to the main game: "RealRTCW\main"
- When it doesn't exist, add the file "autoexec.cfg" to each mod: "Steam\steamapps\workshop\content\1379630\xxxxx"
- Add a line to the end of all files "autoexec.cfg": exec user.cfg
I like to use my own settings in the "user.cfg" file.
The "user.cfg" file is run separately in each mod via the "autoexec.cfg" file.
However, every update resets my modified "autoexec.cfg" file.