big refac and features

Cargo.lock

Cargo.toml

res/metadata.scale

src/cache.rs

src/commands.rs

src/commands/account.rs

src/commands/blockchain.rs

src/commands/certification.rs

src/commands/cesium.rs

src/commands/collective.rs

src/commands/distance.rs

src/commands/expire.rs

src/commands/identity.rs

src/commands/net_test.rs

src/commands/oneshot.rs

src/commands/revocation.rs

src/commands/smith.rs

src/commands/sudo.rs

src/commands/transfer.rs

src/commands/ud.rs