Fix empty board and examples list

[fredr]

This project is still running on react 15, and these UNSAFE_*-lifecycle aliases where not introduced until 16.3, hence they are never called.

fixes #1163, fixes #1360, fixes #1363, fixes #1361, fixes #1372

[ghost]

All CLA requirements met.

[maddogjt]

Tested this locally and it addresses the issues.

[julianrendell]

This is close to a showstopper for using VSCode + Arduino with new developers/students- especially if trying to import an existing project.

A partial workaround is to create a completely new folder, and then execute "Arduino-> initialize": this creates a new ino file and prompts for the board from the list of installed boards, and correctly generates the Arduino.json and c_cpp_properties files.

Is it possible to get an ETA on when this can be approved?

[GXTX]

Just a bump so org members see this.
What is the status? This change is required to actually use this extension unless you downgrade.

[benmcmorran]

Sorry about the delay everyone. I'm taking a look now.

[benmcmorran]

Looks like CI is broken (not your fault). I'm going to work on that in a separate PR, then come back and merge this.

[benmcmorran]

I also had to make the change in #1379 to support the case where an arduino.json file is not already present. I'm building a new release candidate now and if everything looks good I'll push it out to the marketplace.

[fredr]

Awesome @benmcmorran, thank you!

[AlexIII]

It all works now, thank you!