Fix:
- Waypoints checker for vehicles is less sensitive
- If vehicle is blocked by an obstacle he automatically resume his path
- Having multiple contracts can drop FPS
- Having multiple brew tanks cause a mess in the computer
- Empty inputs
- Brewer employees can operate yeast
- Dropped yeast cardboards, yeast bags and empty bottles are correctly spawned
- Displayed yeast cardboards, yeast bags and empty bottles in the hand of employees has been corrected