Pickup after cancelling vehicle examination.

This allows the player to pickup items after cancelling the
examine vehicle window, this was the old behaviour.

I think this behavior is not intuitive, we have to move the examine menu
outside of pickup() and into examine()
Pick up items in the ground and in the vehicle at the same time.

Both lists are appended together and that's shown in the pickup menu.
Revert first commit, don't pickup after examine.

The previous commit handles this a lot better.
Ask to access the items in the vehicle or in the ground.
Merge pull request #5856 from sduran/fix_allow_pickup_vehground

Pickup after cancelling vehicle examination.