[fix] crypto: security: clear seed when keypair it's droped

Cargo.lock

lib/core/conf/src/keys.rs

lib/core/conf/src/lib.rs

lib/core/core/src/lib.rs

lib/core/module/src/lib.rs

lib/crypto/src/bases/b58.rs

lib/crypto/src/keys/bin_signable.rs

lib/crypto/src/keys/ed25519.rs

lib/crypto/src/keys/mod.rs

lib/crypto/src/keys/seed.rs

lib/crypto/src/lib.rs

lib/dubp/common-doc/Cargo.toml

lib/dubp/user-docs/src/documents/certification/v10.rs

lib/dubp/user-docs/src/documents/identity/v10.rs

lib/dubp/user-docs/src/documents/membership/v10.rs

lib/dubp/user-docs/src/documents/revocation/v10.rs

lib/dubp/user-docs/src/documents/transaction.rs

lib/dunp/network-documents/src/lib.rs

lib/modules/ws2p-v1-legacy/src/lib.rs

lib/modules/ws2p-v1-legacy/src/ws_connections/mod.rs