w5500 v0.4.0

Added

• Add support for 3-wire SPI bus (#15)
• Add constructors for network types (#21)
• Add method to change PHY configuration (#23)
• Add feature no-chip-version-assertion for compatible chips with unexpected version information
• Add MacAddress::octets()
• Add impl From<[u8; 6]> for MacAddress
• Add Device::deactivate and InactiveDevice::activate
• Add re-export of FourWireError and ThreeWireError
• Add FourWireRef to be able to use Device with borrowed SPI and CS
• Add DeviceRefMut to be able to use Device without moving ownership
• Add getter: Device::{gateway,subnet_mask,mac,ip,version}
• Restructure and implement embedded-nal UDP trais (#26) - big thanks to @jonahd-g
• Add TCP client support (#24) - big thanks to @ryan-summers

Changed

• Updated dependencies (#22)
• Mode fields are now publicly acessible

Removed

• Cargo.lock (#20)
• Replace net::Ipv4Addr with embedded_nal::Ipv4Addr