the big rename (#57)

auction/Cargo.toml

auction/src/lib.rs

auction/src/mock.rs

currencies/Cargo.toml

currencies/src/lib.rs

currencies/src/mock.rs

oracle/Cargo.toml

oracle/src/lib.rs

oracle/src/mock.rs

oracle/src/timestamped_value.rs

prices/Cargo.toml

prices/src/lib.rs

prices/src/mock.rs

tokens/Cargo.toml

tokens/src/lib.rs

tokens/src/mock.rs

traits/Cargo.toml

traits/src/auction.rs

traits/src/lib.rs

utilities/Cargo.toml