'Arduino Uno WiFi Rev2' support

[ihor-drachuk]

Hi!

First of all I would like to say you great thank you for this awesome project which allows coding in normal IDEs. =)

And now about the problem I faced... Seems Arduino-CMake-Toolchain detected this board (Arduino Uno WiFi Rev2) correctly, build of simple hello-world code passes, but:

• I don't see any available Serial for this board (it was IDE problem, but still interesting why it doesn't see it)
• Even Blink example doesn't work correctly after flashing - it blinks with delay ~9 ms and doesn't matter which parameter I pass to delay: 1000 or 1000000.

What I've tried:

• Branch release-1.1-dev: I don't see upload target for this hello-world project
• Branches variant_link_alt (both): didn't resolve the problem

Hello-world project: hello-world.zip

Could you please fix it or suggest something helpful for me?