fix: for variable size keccak, inputs are zeroed after the requested length#632

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guipublic wants to merge 3 commits intoacvm-backend-barretenbergfrom gd/keccak_var_issue

+118-1

Commits on Jul 25, 2023

simple test for keccak var
guipublic
committed
fixed bug where variable_length keccak failed if byte array had nonzero bytes past claimed input hash length
zac-williamson
committed

Commits on Aug 1, 2023

code review
guipublic
committed