Use the Arduino IoT Cloud Library with debug enabled

[zmoog]

Motivation

As of today, the officially released Arduino IoTCloudLibrary does not have any specific verbose logs the trace step in the Over-the-Air (OTA) update process.

I created a fork of the library with just a few additional simple log statements during the main OTA update steps.

Change description

Describe how to use the IoTCloudLibrary fork to print much more details about the Over-the-Air update of the sketch.

Additional Notes

• Add logs on OTA process steps arduino-libraries/ArduinoIoTCloud#282

Reviewer checklist

• PR address a single concern.
• PR title and description are properly filled.
• Changes will be merged in main.
• History is clean, commit messages are meaningful (see CONTRIBUTING.md) and are well formatted.

[zmoog]

This guide is now probably good enough for internal/external use.

@eclipse1985 @glumia please give it another read id there's something big missing or wrong 🙇 🙇 🙇