Add support for esp-elf-gdb in Arduino ESP32 v2.0.8+

Fix missed default declaration for tarch

Remove old CI config

Add support for all new ESP chips

Merge pull request #31 from earlephilhower/use_gdb

Replace addr2line with GDB to get accurate line #s

Add exception cause decoding with description

Support ESP32, Manually select ELF if not found

make output text selectable

Output coloring

fix case where elf might have cpp prefix