* Move three dependent customizations into new file
* default_min_pin_length(_rp_ids) and max_rp_ids_length
* Did some backing store tricks to make the list configurable in
TestCustomization.
* Add testing for TestCustomization
* Change assert comparison to assert_eq
* Separate tests
* Move 3 pure constants to new file
* Return Vec<String> for rp_ids()
* Make rng in TestEnv deterministic and seedable
* Move seed method to TestRng256
* Change some constant name in comments to snake case
* Move seed rng of env to the start
* Fix unused warning
* Make rng in TestEnv deterministic and seedable
* Move seed method to TestRng256
* Move seed rng of env to the start
* Fix unused warning
* Seed rng in all fuzz targets
* Fix error introduced when merging
Co-authored-by: Julien Cretin <cretin@google.com>
