[feat] gva: add subset bca

Cargo.lock

Cargo.toml

rust-libs/modules/gva/Cargo.toml

rust-libs/modules/gva/bca/Cargo.toml

rust-libs/modules/gva/bca/src/exec_req_type.rs

rust-libs/modules/gva/bca/src/exec_req_type/members_count.rs

...dules/gva/bca/src/exec_req_type/prepare_simple_payment.rs

rust-libs/modules/gva/bca/src/lib.rs

rust-libs/modules/gva/bca/src/utils.rs

rust-libs/modules/gva/bca/types/Cargo.toml

rust-libs/modules/gva/bca/types/src/lib.rs

rust-libs/modules/gva/bca/types/src/prepare_payment.rs

rust-libs/modules/gva/src/lib.rs

rust-libs/modules/gva/src/warp_.rs