feat(bberg)!: add secp256r1 builtin to barretenberg (#223)

* feat: r1 bindings

* fix: toml and verbose cbind

* fix: cleanup

* chore: update bb flake

* chore(nix): update flake

* chore: bump

* update bb and flake.lock

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Co-authored-by: kevaundray <[email protected]>

Author: Maddiaa0