* Start
* Some sha256 test passing
* precompiles folder
* Files reorg
* Progress
* Minor
* Start of sha2 interface
* All call opcodes
* ecrec
* rip160
* Fix copy_returndata_to_mem
* id
* bn_add
* bn_mul
* TODOs for snarkv and blake2
* Comments
* Use charge_gas_const when possible
* Minor
* Minor
* Minor
* PR feedback