Fix directory structure, add config for debugging simple-uart-transmit on real HW

esp32c3_rev3_rom.elf

nothing/Makefile

nothing/nothing.c

reading-writing-registers/Makefile

reading-writing-registers/esp32-c3-register-interface.c

reading-writing-registers/esp32-c3-register-interface.h

reading-writing-registers/main.c

simple-uart-transmit/.gdbinit

simple-uart-transmit/.vscode/launch.json

simple-uart-transmit/Makefile

simple-uart-transmit/debug-hw.sh

simple-uart-transmit/esp32-c3-uart-interface.c

simple-uart-transmit/esp32-c3-uart-interface.h

simple-uart-transmit/main.c

uart-transmit/Makefile

uart-transmit/esp32-c3-led-helpers.c

uart-transmit/esp32-c3-led-helpers.h

uart-transmit/esp32-c3-uart-interface.c

uart-transmit/esp32-c3-uart-interface.h

uart-transmit/main.c