Add additional circuit bindings

[rpalakkal]

Some additional functions we could add are:

• halo2-ecc functions (https://github.com/axiom-crypto/halo2-lib/tree/community-edition/halo2-ecc/src)
• sha256 (https://github.com/axiom-crypto/halo2-lib/tree/feat/zkevm-sha256)
• zkevm-keccak?