feat(blog): Add tutorial on how to create an Arduino library (#609)

* feat(blog): Add tutorial on how to create an Arduino library

* Apply suggestions from code review

Co-authored-by: Francesco <[email protected]>

* Apply code suggestions

* feat(img): Add featured image

* Apply suggestions from code review

Co-authored-by: ESP-Kirill <[email protected]>

* Change publication date

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Co-authored-by: Francesco <[email protected]>
Co-authored-by: ESP-Kirill <[email protected]>

Author: 3 people