Add support for the ESP32-H2

[jessebraham]

I'll be taking care of this one as well (possibly in collaboration with some colleague(s)), and this likely won't happen until the new year, but just wanted to create a tracking issue regardless.

Status

• Create an SVD
• Create a PAC
• Add support to ancillary crates (esp-backtrace, esp-println)
• Create a HAL package
• Final review and publication (in progress)

[jessebraham]

I've begun work on HAL support for this device.

[jessebraham]

Development will take place in this branch until the changes are ready to merge into main:
https://github.com/esp-rs/esp-hal/tree/feature/esp32h2