Embedded rust support for the Wiznet W5500 SPI internet offload chip.

• w5500-ll contains low-level drivers, register setters & getters.
• w5500-hl contains higher-level drivers.
• w5500-regsim contains a simulation of the w5500-ll Registers trait.
• Other crates contain protocol implementations.

Name	Crates.io	Documentation
w5500-dhcp
w5500-dns
w5500-hl
w5500-ll
w5500-mqtt
w5500-regsim
w5500-sntp
w5500-tls