* Changed default baud rate in schema for ws2812spi and sk6812spi
* now sets the default baud_rate speed to 2800000 if omitted.
Previously it used the ProviderSPI default which was 1000000 and guaranteed not to work
* Added warnings if the SPI baud rate is likely out of range
Added some debug statements to ProviderSpi
If you have more leds configured than the SPI buffer can support you now get this:
[HYPERIOND LedDevice] <DEBUG> <ProviderSpi.cpp:92:writeBytes()> SPI failed to write. errno: 90, Message too long