Change Details

Import the `secp256k1-sys` crate from [[ https://github.com/rust-bitcoin/rust-secp256k1 | rust-secp256k1 ]] repository, and apply the following modifications: - Removed the vendored secp256k1 library imported from bitcoin-core - Use our secp256k1 library of the monorepo - Add ABC's `secp256k1_schnorr_sign` and `secp256k1_schnorr_verify`, which are the Schnorr signatures used by ABC. These are distinct from the x-only pubkey BIP340 signatures from BTC, but we keep them to simplify backports, and to (in the future) allow eCash apps to also talk some BTC. - Port the GitHub CI from the repository to a test.sh. Those depends on https://github.com/rust-bitcoin/rust-bitcoin-maintainer-tools, so the relevant parts have been ported and cleaned up. - Adapt the Rust workspace structure to our workspace. - Reformat everything with our formatting rules.

Import the `secp256k1-sys` crate from [[ https://github.com/rust-bitcoin/rust-secp256k1 | rust-secp256k1 ]] repository, and apply the following modifications: - Removed the vendored secp256k1 library imported from bitcoin-core - Use our secp256k1 library of the monorepo - Add ABC's `secp256k1_schnorr_sign` and `secp256k1_schnorr_verify`, which are the Schnorr signatures used by ABC. These are distinct from the x-only pubkey BIP340 signatures from BTC, but we keep them to simplify backports, and to (in the future) allow eCash apps to also talk some BTC. - Port the GitHub CI from the repository to a test.sh. Those depend on https://github.com/rust-bitcoin/rust-bitcoin-maintainer-tools, so the relevant parts have been ported and cleaned up. - Adapt the Rust workspace structure to our workspace. - Reformat everything with our formatting rules.

Import the `secp256k1-sys` crate from [[ https://github.com/rust-bitcoin/rust-secp256k1 | rust-secp256k1 ]] repository, and apply the following modifications: - Removed the vendored secp256k1 library imported from bitcoin-core - Use our secp256k1 library of the monorepo - Add ABC's `secp256k1_schnorr_sign` and `secp256k1_schnorr_verify`, which are the Schnorr signatures used by ABC. These are distinct from the x-only pubkey BIP340 signatures from BTC, but we keep them to simplify backports, and to (in the future) allow eCash apps to also talk some BTC. - Port the GitHub CI from the repository to a test.sh. Those depends on https://github.com/rust-bitcoin/rust-bitcoin-maintainer-tools, so the relevant parts have been ported and cleaned up. - Adapt the Rust workspace structure to our workspace. - Reformat everything with our formatting rules.