Build 86: AI rework — Beer Factory Steam update #579671

Hello brewers, It's been a while since the last update, thank you for your patience. Over the last few weeks, I've been able to take a week's rest after the last two long years of work, and then of course I'm back at work. After careful consideration, rather than correcting and patching a system that's not optimal and that generates a lot of problems, I decided to rework the AI in depth: its movements, the generation of its navigation perimeter and the generation of the path it takes. It took a long time, but it's now a system over which I have full control. Many of you also wanted the employees to unload the delivery truck at the start of the game, but adding an AI to drive the vehicles would have been another long job, so I did some experimentation and came up with a result that I found rather amusing without intending to, so I opted for this one and took the opportunity to add the fun...