esp32h2 support

[sbusceti]

Here's the translation:

Hello, congratulations on the excellent library; I am using it with great satisfaction on an ATTINY85 as TX and an Arduino Uno as RX.
Now, I would like to replace the Arduino with an ESP32-H2 to take advantage of the Zigbee protocol and integrate my project into home automation.
Is the Manchester library compatible with ESP32? I tried to compile it, but I get many errors. I also saw that there was a merge for ESP32 support in the history, but then it was reverted.

Thank you.