* support for arbitrary arity for F

* revive MinRoot example

* revive tests

* revive ecdsa

* remove unused code

* use None instead of Some(1u32)

* revive benches

* fix clippy warning

* integrate with neptune's sponge

* fix clippy warning

* add checks to ensure at most one squeeze

* add checks to ensure at most one squeeze

* switch to RO in the Group trait

* simplify compression

* absorb IO as bignum for relaxedR1CS

* apply a hash function before adding to transcript

* truncate shape_digest into 250 bits

* add missing file

* fix clippy

* cargo fmt