* initial version of base_sum_gate

* add recursive circuit benchmark files

* added step circuit data and contant gate test

* moved step testing data into gate_testing_utils

* added test case for basesum gate

* added test for arithmetic_gate

* pretty print fibonacci data files

* added in new dummy proof serialized data

* updated powresponse calculation in the challenger chip

* changes to reflect these plonky2 changes:  40aecc8e95

* modified benchmark to accept circuit name