ATL-653: Added error handling for core/lib install

[kittaakos]

From now on, we toast an error message and update the Arduino output channel if the platform/lib installation has failed for whatever reason.

I tested the changeset with the following 3rd party cores:

• https://github.com/watterott/Arduino-Boards/raw/master/package_watterott_index.json (checksum issue)
• https://raw.githubusercontent.com/eddieespinal/atmegazero/master/package_atmegazero_index.json (no unique root dir in archive)
• https://raw.githubusercontent.com/tenbaht/sduino/master/package_sduino_stm8_index.json (no unique root dir in archive)
• https://udooboard.github.io/arduino-board-package/package_udoo_index.json (no unique root dir in archive)

In-action:

screencast.2021-03-10.13-19-03.mp4

Before this change: there was no indication of the installation failure.

Signed-off-by: Akos Kitta [email protected]

[per1234]

I tried it out and it's a very nice improvement. Thanks Akos!

[fstasi]

looks really good

[ubidefeo]

🚀