micro-rustscript ESP32-C3 esp32-v0.2.0

Directly flashable ESP32-C3-DevKitM-1 image with namespaced GPIO, I2C, MCU, and serial framework APIs. Startup checks SD, then the dedicated VMBC partition, then opens the serial VMBC REPL.

Flash at offset 0x0:

python -m esptool --chip esp32c3 erase_flash
python -m esptool --chip esp32c3 write_flash 0x0 micro-rustscript-esp32-c3.factory.bin

Full Changelog: https://github.com/rustscript-lang/micro-rustscript/commits/esp32-v0.2.0