Create reusable components

[mh-dev]

There as been a question about this topic in https://esp32.com/viewtopic.php?f=2&t=2436

My approach of how to develop and test reusable components independently of an application might of interest for other developers.
I created simple example as demonstration located at https://github.com/mh-dev/esp32_reusable_components.
It consists of

• The simple component awesome_component
• Application that uses it
• Setup explanation in README.md

Let me know if you have questions or feedback!