Add W5500 SPI Ethernet

[bensuffolk]

Additional files and configuration to build W5500 SPI Ethernet functionality, along with a a lanbon build options ini file

[fvanroie]

This is great! It seems the ETH and ETHSPI classes are nearly identical, except the begin() method.

To reduce code duplication, I'd propose to merge the src\sys\net\hasp_ethernet_esp32.cpp and src\sys\net\hasp_ethernet_spi.cpp files and create an HASP_ETHERNET flag to define either the ETH or ETHSPI class.

I can't test it but I've updated master and it compiles fine. Can you give it a go? 0f95052
I need to get some W5500 modules to properly test...

[nagyrobi]

I need to get some W5500 modules to properly test...

Yeah me too. Any advice which ones worth best?

[bensuffolk]

Yes I will test in a couple of days when I’m back at home. I use the cheap usr-es1 from Ali express. About £3.50 ish each. Never had any issues with them and I have used about 30 or so in projects for the last few years.

[bensuffolk]

Ok, Have tested, network is ok, I can access the web and telnet, but MQTT won't connect. I shall have to investigate and see if I can find out why.

[bensuffolk]

I have created a new pull request #345 to fix MQTT on Ethernet