Making of LLemMings

Add the finish zone (house)

ChatGPT: prompts below

Quite a bit of human glue in this commit. Also, the house generated by
ChatGPT was too hideous that I actually stole some SVG. I hang my head
in shame.

>>> Prompt 1:
Using Javascript, I want to draw an inline SVG on a canvas

>>> Prompt 2:
Give me an SVG that depicts a house.