Add test vectors for pedersen commitments/hashes with non-zero separators

[TomAFrench]

We recently ran into an issue during the Noir sync which slipped through due to a lack of tests for non-zero separators.

We should generate some test vectors using an old version of Noir prior to the removal of pedersen blackbox functions, port over the changes from this commit and ensure that the new implementation matches these values.

[guipublic]

I added test vector in PR #5431