Clean up more visual gears stuff in scripts
- Make vgears non-critical if possible
- Add nil checks where needed
- Fix related bugs
- Remove doomed attempts to call FollowGear on vgears
f3e903ace2d3
Make hedgewars frontend not change scheme/weps to Default if script cfg doesn't match a known scheme. That is, will leave on whatever is selected. Also set a bunch of schemes where we don't care what the scheme/weps are to *