Resolve "simple pathfinding"

Closes #120

See merge request scs/cocosy/overcooked-simulator!89

Changed from unpacking operator to direct accessing of grid idx, weirdly did not work on gitlab test runner

- added function for calculating a graph with possible movements
- used astar on this graph for the random agent

Resolve "controller hotplugging"

Closes #118

See merge request scs/cocosy/overcooked-simulator!87

Resolve "Configure displayed language"

Closes #105

See merge request scs/cocosy/overcooked-simulator!80

- Looks simpler
- Adjusted button hiding on number of humans
- Kitchen size gets returned in level info

# Conflicts:
#	cooperative_cuisine/pygame_2d_vis/gui.py
#	cooperative_cuisine/pygame_2d_vis/visualization.yaml

Resolve "In screen after a game show cook icons"

Closes #108

See merge request scs/cocosy/overcooked-simulator!85

# Conflicts:
#	cooperative_cuisine/pygame_2d_vis/drawing.py

Resolve "Hook when putting items back on dispenser"

Closes #111

See merge request scs/cocosy/overcooked-simulator!84