Check private polygon's output

[0xPetra]

    (as per comment above 🤔 )

Originally posted by @ronerlih in #42 (comment)

We should only output the pedersen hash as plain text and a boolean stating if the user is within a certain area.

I remember that we setup these coordinates as private inputs to calculate if the user is within the polygon and make sure that the coordinates and the pedersen hash are the same.